CN213070315U

CN213070315U - Eyeball simulator for assisting ophthalmologist in practicing front mirror and three-mirror

Info

Publication number: CN213070315U
Application number: CN202021951041.6U
Authority: CN
Inventors: 杨财; 李玉洁
Original assignee: Peoples Hospital of Deyang City
Current assignee: Peoples Hospital of Deyang City
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-04-27
Anticipated expiration: 2030-09-09

Abstract

An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a three-mirror comprises a sphere, a transparent sheet, a shielding plate, a convex lens and a support, wherein the sphere is made of a shading material, or the inner wall and/or the outer wall of the sphere is coated with a shading layer, the sphere is of a hollow structure, and the wall of the sphere is provided with a first observation port; the transparent sheet is made of transparent materials and is assembled on the first observation port of the ball wall of the ball body; the shielding plate and the convex lens are further assembled inside the sphere, the shielding plate is located between the convex lens and the transparent sheet, a second observation port is formed in the center of the shielding plate, and the center of the first observation port, the center of the second observation port and the optical center of the convex lens are located on the same straight line; the inner wall of the sphere opposite to the first observation port is provided with an eyeground picture imitating retina and blood vessels inside the eyeball, and the support is movably arranged on the outer peripheral wall of the sphere.

Description

Eyeball simulator for assisting ophthalmologist in practicing front mirror and three-mirror

Technical Field

The utility model relates to an eyeball simulator for assisting ophthalmologists in practicing front mirrors and three-sided mirrors.

Background

The front mirror and the triple mirror are skills that each ophthalmologist must master, and are indispensable diagnostic means for the ophthalmologist to diagnose the eye patient.

The traditional eyeball analogue instrument focuses on roughly displaying the internal structure of the eye, so that an ophthalmologist can know more intuitively, and the eyeball analogue instrument is a teaching model. The traditional eyeball simulating instrument cannot be used for learning and practicing of a front mirror and a three-mirror. The reason for this is that the conventional eyeball simulator does not simulate the environment inside the eyeball, but simply makes the structures inside the eyeball into mutually independent models.

Disclosure of Invention

The utility model aims to provide a: in view of the above-mentioned shortcomings of the prior art, an eyeball simulator is provided which can not only simulate the internal environment of an eyeball more truly, but also assist an ophthalmologist in practicing a front mirror and a triple mirror.

The technical scheme adopted by the utility model is that the eyeball simulator for assisting the ophthalmologist to practice the front mirror and the three-sided mirror comprises a sphere, a transparent sheet, a shielding plate, a convex lens and a bracket, wherein the sphere is made of a shading material, or the inner wall and/or the outer wall of the sphere is coated with a shading layer, the sphere is of a hollow structure, and the spherical wall of the sphere is provided with a first observation port; the transparent sheet is made of transparent materials and is assembled on the first observation port of the ball wall of the ball body; the shielding plate and the convex lens are further assembled inside the sphere, the shielding plate is located between the convex lens and the transparent sheet, a second observation port is formed in the center of the shielding plate, and the center of the first observation port, the center of the second observation port and the optical center of the convex lens are located on the same straight line; the inner wall of the sphere opposite to the first observation port is provided with an eyeground picture imitating retina and blood vessels inside the eyeball, and the support is movably arranged on the outer peripheral wall of the sphere.

The diameter of the first observation port of the sphere is 10 mm-15 mm.

The diameter of the second observation port of the shielding plate is 4-8 mm.

Further, the thickness of the shielding plate is 1-2 mm.

The sphere is elliptic and is divided into a left valve and a right valve, and the right opening edge of the left valve sphere is connected with the left opening edge of the right valve sphere in a threaded connection manner; the eye ground picture is positioned in the left valve ball body, and the transparent sheet, the shielding plate and the convex lens are positioned in the right valve ball body.

The eyeball simulator also comprises a picture pasting plate, a first magnet is assembled on the inner wall of the sphere of the opposite surface of the first observation port, a second magnet is arranged on the left side surface of the picture pasting plate and is attracted with the first magnet, and the eye ground picture is adhered to the right side surface of the picture pasting plate or drawn; the ball wall of the ball body, which is positioned beside the first magnet, is provided with a replacement window, and the replacement window is provided with a shielding cover which plays a role in sealing the replacement window.

Furthermore, the first magnet is arranged on the spherical wall of the sphere of the first observation port opposite surface through a screw rod, namely, an adjusting hole with internal threads is formed in the spherical wall of the sphere of the first observation port opposite surface, the adjusting hole is screwed with the screw rods matched with each other, the central axis of the screw rods sequentially penetrates through the center of the first observation port, the center of the second observation port and the optical center of the convex lens, the end part, located in the sphere, of the screw rods is provided with a connecting seat, a first magnet is arranged in the connecting seat, and the left side surface of the picture pasting plate is sucked on the connecting seat; and adjusting the screw rod to enable the picture pasting board to move back and forth along the central axis direction of the screw rod.

The refractive power of the convex lens is +20D to + 40D.

The shading material is a shading PC material or a high-reflection PC material; the shading layer is a shading PC layer or a high-reflection PC layer.

The transparent material is PMMA plastic material.

The utility model has the advantages that: the utility model discloses not only can simulate eyeball internal environment more really, can assist the exercise of ophthalmologist to leading mirror and three-sided mirror moreover.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of this embodiment 1.

The reference symbols in FIG. 1 mean: 1-sphere; 101-left lobe sphere; 102-right lobe sphere; 103 — a first viewing port; 104-clamping the inner cavity; 2-a transparent sheet; 3-a shielding plate; 301 — second viewing port; 4-a convex lens; 5, a bracket; 501-supporting head, 502-clip; 6-fundus picture.

Fig. 2 is a schematic view of this embodiment 2.

The reference symbols in FIG. 2 mean: 7-screw rod; 8, a connecting seat; 801 — a first magnet; 9-picture pasting board; 901-a second magnet; 10, replacing the window; 11-a shielding cover.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should also be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to FIG. 1: the utility model relates to an eyeball simulator for assisting an ophthalmologist to practice a front mirror and a three-sided mirror, which comprises a sphere 1, a transparent sheet 2, a baffle plate 3, a convex lens 4 and a bracket 5,

the sphere 1 is made of a shading material, or the inner wall and/or the outer wall of the sphere 1 is coated with a shading layer, the sphere 1 is of a hollow structure, and the sphere wall of the sphere 1 is provided with a first observation port 103. In this embodiment, the edge of the first observation port 103 is circular, and the first observation port 103 is opened at the right end of the elliptical sphere 1. Further, the shading material is a shading PC material or a high-reflection PC material; the shading layer is a shading PC layer or a high-reflection PC layer. Of course, other, existing light-shielding materials may be used to ensure that an external light source cannot be transmitted into the sphere 1 through the spherical wall of the sphere 1. Wherein the sphere 1 simulates an eyeball.

The transparent sheet 2 is made of transparent materials, and the transparent sheet 2 is assembled on a first observation opening of the ball wall of the ball body 1. In this embodiment, the transparent sheet 2 is adhered to the edge of the first viewing port 103 by glue (of course, the transparent sheet 2 may also be clamped in the first viewing port 103). Further, the transparent material is a PMMA plastic material. Of course, other, conventional transparent materials may be used to ensure that the ophthalmologist can clearly observe the fundus oculi picture 6 inside the globe 1 from the transparent sheet 2 through the front mirror and the triple mirror. Further, the transparent sheet 2 is in the shape of a circular arc surface. Wherein the transparent sheet 2 is used to simulate a cornea.

The shielding plate 3 and the convex lens 4 are also assembled in the sphere 1, and the shielding plate 3 is located between the convex lens 4 and the transparent sheet 2. Further, the diopter number of the convex lens 4 is +20D to +40D (for example, +20D, +30D, or + 40D). In this embodiment, the peripheral edge of the shielding plate 3 is correspondingly attached to the inner wall of the sphere 1, and is fixed by glue; the peripheral edge of the convex lens 4 is correspondingly attached to the inner wall of the sphere 1 and is bonded and fixed through glue. Of course, a first annular groove and a second annular groove may be formed in the inner wall of the sphere 1, and the peripheral edge of the shielding plate 3 and the peripheral edge of the convex lens 4 are correspondingly clamped in the first annular groove and the second annular groove, respectively. After the baffle plate 3 and the convex lens 4 are fixed, the plane where the baffle plate 3 is located needs to be parallel to the plane enclosed by the edges of the convex lens 4 and the inner wall of the sphere 1.

A second viewing port 301 is formed in the center of the shielding plate 3, and the center of the first viewing port 103, the center of the second viewing port 301 and the optical center of the convex lens 4 are located on the same straight line. A second observation port 301 is formed in the center of the shielding plate 3 and used for simulating a pupil; the convex lens 4 is used to simulate a crystalline lens.

At the inner wall of the sphere 1 opposite to the first observation port 103 (i.e., at the inner wall of the left end portion of the sphere 1 in this embodiment), there is a fundus picture 6 imitating the retina and its blood vessels inside the eyeball. When an ophthalmologist observes the internal structure of the sphere 1 through the front mirror and the three-mirror, the internal structure can be displayed in the front mirror and the three-mirror. In this embodiment, the fundus picture 6 is directly drawn or directly bonded on the inner wall of the sphere 1 on the opposite side of the first observation port 103.

Further, the diameter of the first observation port of the sphere 1 is 10mm to 15 mm. For example 10mm, 12mm or 15 mm.

Further, the diameter of the second observation port 301 of the shielding plate 3 is 4mm to 8 mm. For example 4mm, 6mm or 8 mm.

Furthermore, the thickness of the shielding plate 3 is 1-2 mm. For example 1mm or 2 mm.

In this embodiment, the sphere 1 is oval and divided into two left and right lobes, and the right opening edge of the left lobe sphere 101 is connected with the left opening edge of the right lobe sphere 102 in a threaded manner. To replace a different fundus picture 6. When the ophthalmologist exercises using the front mirror and the triple mirror, the left valve ball 101 can be screwed down, and other left valve balls 101 with different eyeground pictures 6 can be replaced, so that the ophthalmologist can observe the conditions of the retinas and the blood vessels in different eyeballs (for example, pictures of the retinas and the blood vessels in the eyeballs of normal people or the retinas and the blood vessels with eyeground diseases). Thus, the ophthalmologist can continuously observe different images (fundus picture 6) of the retina and the blood vessel thereof, and correspondingly and skillfully master the eye focus conditions of different ophthalmology patients.

Mastering the pictures of different retinas and blood vessels inside the eyeball

The fundus picture 6 is positioned inside the left valve ball body 101, and the transparent sheet 2, the shielding plate 3 and the convex lens 4 are positioned inside the right valve ball body 102.

The support 5 is movably arranged on the peripheral wall of the sphere 1. In this embodiment, the top of the bracket 5 is provided with a sphere-shaped supporting head 501, and the bottom is provided with a clip 502 (for fixing on a mandibular rest of a slit lamp), or a clip. A clamping inner cavity 104 in a circular concave shape is arranged at a position (namely, the distance between the clamping inner cavity 104 and the left opening edge of the right petal sphere 102 is 5 mm-7 mm) under the right petal sphere 102 (at the lowest end of the right petal sphere 102) and close to the left opening edge of the right petal sphere 102, and a supporting head 501 at the top of the bracket 5 is wrapped in the clamping inner cavity 104, so that the sphere 1 can freely rotate and swing for 360 degrees. Of course, other articulation means may be used. For example a hinged connection.

In this embodiment, by reasonably designing the sphere 1, the transparent sheet 2, the shielding plate 3, the convex lens 4 and the bracket 5, not only can the internal environment of the eyeball be simulated more truly, but also the practice of the ophthalmologist on the front mirror and the three-sided mirror can be assisted.

The maximum distance from the left end to the right end of the sphere 1 is 30mm to 40mm (e.g., 30mm, 35mm, or 40 mm), the maximum distance from the upper end to the lower end is 25mm to 35mm (e.g., 25mm, 30mm, or 35 mm), and the lengths of the left and right two-piece spheres are 15mm to 20mm (e.g., 15mm, 17mm, or 20 mm); there is no requirement for the distance between the transparent sheet 2 and the shielding plate 3, and the distance between the shielding plate 3 and the convex lens 4, and the transparent sheet 2, the shielding plate 3 and the convex lens 4 are all in the right lobe sphere 102, and the shielding plate 3 is located between the transparent sheet 2 and the convex lens 4.

When in use, the bottom of the bracket is fixedly clamped on a mandible support of a slit lamp, then an ophthalmologist aligns the transparent sheet 2 of the sphere 1 by using a front lens and a three-mirror lens, then the eyeball simulator is manually rotated or swung and kept still, and meanwhile the ophthalmologist observes different positions of the eyeground picture 6. The left-lobe ball 101 is unscrewed, another left-lobe ball 101 is replaced, and the above operation and observation process is repeated again. Wherein, the operation specification of the eyeball simulator observed by the ophthalmologist by using the front mirror and the three-mirror is consistent with the operation specification of actually observing the eyes of the ophthalmology patient.

Example 2

Referring to fig. 2: the other structure of the present embodiment 2 is the same as that of the embodiment 1, except that:

the eyeball simulator also comprises a picture pasting plate 9,

a first magnet 801 is assembled at the inner wall of the sphere opposite to the first viewing port,

a second magnet 901 is arranged on the left side surface of the picture pasting board 9 (in the embodiment, the second magnet 901 can be embedded into the left side surface of the picture pasting board 9), the picture pasting board is attracted with the first magnet 801, and the right side surface is adhered with the fundus picture through glue or drawn with the fundus picture;

the wall of the sphere near the first magnet 801 is provided with a replacement window 10, and the replacement window 10 is provided with a shielding cover 11 for sealing the replacement window 10. One side edge of the shielding cover 11 is hinged to one side edge of the replacement window 10 through a hinge shaft, and the other side edge is correspondingly connected to the other side edge of the replacement window 10 through a locking structure (e.g., a latch) or a snap structure. The locking structure and the buckling structure are existing mature connecting pieces, the locking structure mainly comprises a movable part and a fixed part, the movable part is fixedly connected to the fixed part on the other side edge of the shielding cover 11, and the movable part is fixedly connected to the other side edge of the replacement window 10.

Further, the first magnet 801 is arranged on the spherical wall of the sphere opposite to the first observation port through a screw 7,

namely, the ball wall of the ball body opposite to the first observation port is provided with an adjusting hole with internal threads, the adjusting hole is screwed with a screw rod 7 which is matched with each other,

the central axis of the screw 7 sequentially passes through the center of the first observation port, the center of the second observation port and the optical center of the convex lens,

the end of the screw 7 located in the sphere is provided with a connecting base 8, a first magnet 801 is arranged in the connecting base 8 (in this embodiment, the first magnet 801 can be embedded into the connecting base 8), and the left side of the picture pasting board 9 is attracted to the connecting base 8;

the picture pasting board 9 can be moved to and fro along the central axis direction of the screw rod 7 by adjusting the screw rod 7. On one hand, the condition of retina and blood vessel in eyeball is simulated more really (in the rotation process of the screw 7, the eyeground picture also rotates along with the retina picture, so that infinite eyeground pictures with different angles are generated); on the other hand, the eye ground picture is replaced by replacing the window 10 and the picture pasting plate 9, and the eye ground picture is replaced by replacing the left valve ball head, so that the cost is lower, and the operation is simpler.

When changing picture flitch 9, only need open through the hasp structure and shelter from lid 11, take out this picture flitch 9 (even picture flitch 9 is followed earlier parts on the connecting seat 8, then take out from changing window 10), put into another picture flitch 9, then cover through the hasp structure and shelter from lid 11 and locking can.

The technical solutions of the above embodiments are only used for illustrating the present invention, and not for limiting the same. Although the present invention has been described in detail with reference to the technical solutions of the foregoing embodiments, those skilled in the art should understand that: the technical scheme can be modified, or part of technical characteristics can be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.

Claims

1. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a three-sided mirror is characterized in that: the eyeball simulator comprises a sphere, a transparent sheet, a shielding plate, a convex lens and a bracket,

the sphere is made of a shading material, or the inner wall and/or the outer wall of the sphere are/is coated with a shading layer, the sphere is of a hollow structure, and the wall of the sphere is provided with a first observation port;

the transparent sheet is made of transparent materials and is assembled on the first observation port of the ball wall of the ball body;

the interior of the sphere is also provided with the shielding plate and the convex lens, the shielding plate is positioned between the convex lens and the transparent sheet,

a second observation port is formed in the center of the shielding plate, and the center of the first observation port, the center of the second observation port and the optical center of the convex lens are positioned on the same straight line;

the inner wall of the sphere opposite to the first observation port is provided with a fundus picture imitating the retina and the blood vessels inside the eyeball,

the support is movably arranged on the peripheral wall of the sphere.

2. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that:

the diameter of the first observation port of the sphere is 10 mm-15 mm.

3. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that:

the diameter of the second observation port of the shielding plate is 4-8 mm.

4. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1 or 3, characterized in that: the thickness of the shielding plate is 1-2 mm.

5. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that:

the sphere is elliptic and is divided into a left valve and a right valve, and the right opening edge of the left valve sphere is connected with the left opening edge of the right valve sphere in a threaded connection manner;

the eye ground picture is positioned in the left valve ball body, and the transparent sheet, the shielding plate and the convex lens are positioned in the right valve ball body.

6. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that:

the eyeball simulator also comprises a picture pasting plate,

a first magnet is assembled on the inner wall of the sphere opposite to the first observation port,

the left side surface of the picture pasting plate is provided with a second magnet which is attracted with the first magnet, and the right side surface is adhered with the eye ground picture or drawn with the eye ground picture;

the ball wall of the ball body, which is positioned beside the first magnet, is provided with a replacement window, and the replacement window is provided with a shielding cover which plays a role in sealing the replacement window.

7. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror as claimed in claim 6, wherein:

the first magnet is arranged on the spherical wall of the sphere on the opposite surface of the first observation port through a screw rod,

namely, the ball wall of the ball body opposite to the first observation port is provided with an adjusting hole with internal threads, the adjusting hole is screwed with mutually matched screw rods,

the central axis of the screw rod sequentially passes through the center of the first observation port, the center of the second observation port and the optical center of the convex lens,

the end part of the screw rod, which is positioned in the sphere, is provided with a connecting seat, a first magnet is arranged in the connecting seat, and the left side surface of the picture pasting plate is attracted to the connecting seat;

and adjusting the screw rod to enable the picture pasting board to move back and forth along the central axis direction of the screw rod.

8. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that:

the refractive power of the convex lens is +20D to + 40D.

9. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that:

10. An eyeball simulator for assisting an ophthalmologist in practicing a front mirror and a triple mirror according to claim 1, characterized in that: the transparent material is PMMA plastic material.