CN217932993U - Eyeball model - Google Patents

Abstract

The utility model discloses an eyeball model, including the eye back, the inside pivot that runs through of eye back is provided with, just the pivot is rotated with the eye back and is connected, pivot lateral wall rigid coupling has the rotor, be provided with the eye ground paster on each of rotor, rotor one end rigid coupling has the handle. The utility model provides a pair of eyeball model rotates the pivot of being connected through setting up and eye back end, under manpower twist grip's effect, can drive the rotor rotation of pivot and pivot surface to different eye ground paster through the rotor different face reaches the process of simulation eye ground pathological change, does benefit to the teaching examination of eye ground pathological change.

Description

a model of an eyeball

technical field

The utility model relates to the field of teaching aids, in particular to an eyeball model.

Background technique

Ophthalmology is a subject that studies diseases that occur in the visual system, including the eyeball and its related appendages, including various diseases of the anterior segment and the posterior segment of the eye. For ophthalmology teaching staff, in order to facilitate students' learning, it is usually used in the classroom Eyeball model to assist the teaching of ophthalmology knowledge. Especially for diseases of the posterior segment of the eye, it is usually necessary to learn fundus examination techniques.

For example, the Chinese utility model whose announcement number is CN214279389U and whose announcement date is 2021.09.24 proposes an eyeball model for fundus examination, including an anterior segment and a posterior segment, which are two hemispherical shells, two Two hemispherical shells are fastened together to form an eyeball; the top of the hemispherical shell of the anterior segment is provided with a round hole through the shell, and a biconvex lens is fixed in the hemispherical shell of the anterior segment, located in the hemispherical shell of the anterior segment At the round hole at the top of the eye, the inner wall of the hemispherical shell of the posterior segment of the eye is provided with several patches at intervals near the retina, and different logos are printed on each patch. Peripheral extension sets four vessel models.

In the prior art, different parts of the fundus are displayed only through different marks printed on the patch, which cannot meet the teaching needs for various fundus diseases. In addition, since fundus lesions and fundus inspection techniques are one of the important contents of teaching assessment, the eye models in the prior art cannot meet the teaching assessment of fundus lesions.

Utility model content

The purpose of this utility model is to provide an eyeball model to solve the above-mentioned shortcomings in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions:

An eyeball model, comprising the posterior segment of the eye, the interior of the posterior segment of the eye is provided with a rotating shaft, and the rotating shaft is connected to the posterior segment of the eye in rotation, a rotating body is fixedly connected to the outer wall of the rotating shaft, and each surface of the rotating body A fundus patch is arranged on the top, and a handle is fixedly connected to one end of the rotating body.

In the aforementioned eyeball model, the posterior segment of the eye is made of hard metal and elastic rubber materials.

In the aforementioned eyeball model, the rotating body is provided with four surfaces.

The above-mentioned eyeball model also includes a bracket and a hemispherical anterior segment fixed on the top of the bracket, a pupil adjustment mechanism is arranged inside the anterior segment, and the pupil adjustment mechanism includes an elastic retaining ring fixed on the inner wall of the anterior segment A lens glass is movably embedded in the central hole of the circlip, and a pneumatic driving assembly for adjusting the horizontal position of the lens glass is arranged on one side of the lens glass.

In the aforementioned eyeball model, the elastic retaining ring is made of elastic rubber material.

In the above-mentioned eyeball model, the pneumatic drive assembly includes a fixed seat and a piston ring that is dynamically and sealingly connected to the inner side wall of the fixed seat, the fixed seat is fixed on the inner side wall of the anterior segment, and the piston ring is fixed to the lens glass. A connecting frame is installed, and a conduit is connected through one side of the fixing seat.

In the aforementioned eyeball model, the anterior segment and the posterior segment are connected by a zipper.

In the aforementioned eyeball model, the lens glass is transparent glass, and one side of the rotating body faces the lens glass.

In the aforementioned eyeball model, the posterior segment of the eye is made of elastic soft material.

In the above technical solution, the utility model provides a kind of eyeball model, by setting a rotating shaft connected with the posterior segment of the eye, under the action of manpower turning the handle, it can drive the rotating shaft and the rotating body on the outer surface of the rotating shaft to rotate, thereby passing Different fundus patches on different sides of the rotating body meet the needs of simulating various lesions of fundus diseases, which is beneficial to the teaching and assessment of fundus lesions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. For some embodiments described, those skilled in the art can also obtain other drawings according to these drawings.

Figure 1 is a schematic diagram of the overall external structure provided by the embodiment of the present invention;

Fig. 2 is a schematic diagram of an internal sectional structure provided by an embodiment of the utility model;

Fig. 3 is a schematic diagram of the connecting structure of the rotating shaft and the rotating body provided by the embodiment of the present invention;

FIG. 4 is a schematic diagram of a partially enlarged structure at A in FIG. 2 provided by an embodiment of the present invention.

Explanation of reference signs:

1. Bracket; 2. Anterior segment; 3. Retaining ring; 4. Lens glass; 5. Fixing seat; 6. Piston ring; 7. Connecting frame; 8. Catheter; 9. Posterior segment; 10. Shaft; 11 , rotating body; 12, handle.

Detailed ways

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further introduced in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1-4, the utility model embodiment provides a kind of eyeball model, comprises support 1 and the hemispherical anterior segment 2 that is fixed on the top of support 1, also includes the pupil regulation mechanism that is arranged on the interior of anterior segment 2; The pupil adjustment mechanism includes a circlip 3 fixed to the inner wall of the anterior segment 2, a lens glass 4 is movably embedded in the center hole of the circlip 3, and a lens glass 4 is provided on one side of the lens glass 4 for adjusting the level of the lens glass 4. position of the pneumatic drive assembly.

Specifically, the bracket 1 is a base for supporting the eyeball model that can be composed of a cuboid or a cylinder with a fixed support rod on the top, and the circlip 3 is also the iris inside the human eyeball, and the lens glass 4 is also the lens inside the human eyeball. , the center inside the retaining ring 3 is also the pupil inside the eyeball of the human body, all of the above are prior art, no need to repeat them, the lens glass 4 moves horizontally through the power provided by the pneumatic drive assembly, so that the lens glass 4 contacts and squeezes The circlip 3, because the circlip 3 is made of elastic rubber material, the part where the lens glass 4 is embedded in the circlip 3 becomes larger, so that the central hole of the circlip 3 becomes larger, and the observer can observe from the front of the model The part that reaches is the part in the center hole of the circlip 3, that is, the pupil inside the eyeball becomes larger. When the pneumatic drive assembly controls the lens glass 4 to move horizontally in reverse, because the circlip 3 itself has elastic force, this elastic force can make The circlip 3 is automatically restored, so that the central hole of the circlip 3 becomes smaller, that is, the pupil inside the eyeball becomes smaller, thereby achieving the purpose of dynamically adjusting the size of the pupil, which is very convenient.

In this embodiment, preferably, the posterior segment of the eye is made of elastic soft material, such as rubber material or soft plastic, etc., and its effect is that the eyeball of the human body is elastic, and it is convenient to simulate the reality more closely when it is set as elastic material. eyeball.

Further, the elastic circlip 3 is made of elastic rubber material. The effect of such arrangement is that the elastic rubber material has the function of automatic recovery after deformation, and has a certain ductility. When the lens glass 4 squeezes the elastic circlip 3 When pressed, the circlip 3 can be deformed, thereby making the pupil larger. After the lens glass 4 cancels the squeezing force on the circlip 3, the circlip 3 can automatically recover, thereby realizing the effect of reducing the size of the pupil.

Still further, the pneumatic drive assembly includes a fixed seat 5 and a piston ring 6 that is dynamically and sealingly connected to the inner side wall of the fixed seat 5, the fixed seat 5 is fixed on the inner side wall of the anterior segment 2, and the piston ring 6 and the lens glass A connecting frame 7 is fixedly installed between the 4, and a conduit 8 is connected through one side of the fixed seat 5, wherein the fixed seat 5 and the piston ring 6 are both annular, and the inner wall of the fixed seat 5 and the piston ring 6 are formed with a The ring-shaped sealed cavity, the fixing seat 5 can be directly fixedly connected with the inner wall of the anterior segment 2, or can be fixed on the inner wall of the anterior segment 2 through a fixing rod. Preferably, one end of the catheter 8 is connected with a pressurized ball, and the pressurized ball is pressed Inflate the inside of the sealed cavity, and the air pressure inside the sealed cavity will increase, causing the piston ring 6 and the connecting frame 7 to move horizontally, thereby driving the lens glass 4 to move horizontally and squeezing the circlip 3, so that the pupil becomes larger. By opening the pressurized ball The internal air valve allows the air inside the sealed cavity to flow out, so the air pressure inside the sealed cavity becomes smaller. Cooperating with the elastic force stored inside the circlip 3, the lens glass 4 and the circlip 3 can shrink, making the pupil smaller. So as to achieve the purpose of quickly and dynamically adjusting the pupil size.

As an embodiment of the present invention, the anterior segment 2 and the posterior segment 9 are connected by a zipper, wherein a fixed shaft is fixedly attached to the bottom of the anterior segment 2, and the bottom end of the posterior segment 9 is rotatably connected to the fixed shaft, and The rest of the anterior segment 2 and the posterior segment 9 can be connected by a zipper, or clamped by blocks. Rotate around the fixed axis to open the model, which is convenient for inspection and replacement of internal parts of the model.

As another embodiment of the present invention, the posterior eye segment 9 is made of hard metal and elastic rubber material, wherein the posterior eye segment 9 is composed of a small part of hard metal part and elastic rubber area, so set The effect is that the hard metal part can be used to install zippers or blocks, which is convenient to increase the stability of the model, and the rotating shaft 10 is also rotatably connected with the hard metal part, which can prevent the posterior segment 9 of the eye from shaking when the rotating shaft 10 rotates, thereby increasing the stability of the model. Stability during adjustment of the rotor 11.

Further, the elastic rubber material area of the posterior segment 9 is distributed on the right side of the zipper or the block, and is located on the upper and lower sides of the rotating shaft 10. Its area is much larger than that of the hard metal area. When a person applies external force to press the elastic rubber area, the elastic The rubber area will be sunken to the inside of the eyeball model, which can more realistically simulate the eyeball, which is conducive to the teaching staff's push-up teaching to the students. After the pressing is completed, due to the material characteristics of the elastic rubber itself, the concave part of the elastic rubber area will be Automatic recovery.

As yet another embodiment of the present invention, it also includes a posterior segment 9, a rotating shaft 10 is provided through the interior of the posterior segment 9, and the rotating shaft 10 is rotatably connected with the posterior segment 9, and the outer wall of the rotating shaft 10 is fixed. Connected with a rotating body 11, each surface of the rotating body 11 is provided with a fundus patch, and one end of the rotating body 11 is fixedly connected with a handle 12. Preferably, the rotating shaft 10 is connected to the hard area of the posterior segment 9 by damping , turning the handle 12 with a little force can drive the rotating shaft 10 and the rotating body 11 to rotate, and after stopping, the position of the rotating body 11 can be automatically maintained, so as to achieve the purpose of quickly adjusting the rotating body 11, which is conducive to the assessment of the fundus examination by teaching staff , and under the action of no external force, the rotating shaft 10 will not deflect automatically, and has high stability.

As another embodiment of the present invention, the lens glass 4 is transparent glass, and one side of the rotating body 11 faces the lens glass 4, preferably, a circular protective cover is arranged inside the anterior segment 2, And the protective cover is also made of transparent glass material, and the students can clearly see the pattern on the surface of the rotating body 11 through the protective cover and the lens glass 4, which provides a powerful condition for the teaching staff to assess the students' fundus.

Further, the lenticular glass 4 adopts a convex mirror design with a thick middle and thin edges, which can reduce the edge position of the lenticular glass 4 and the circlip 3 on the one hand, that is, reduce the damage of the circlip 3 and the lenticular glass 4. On the one hand, the lenticular glass 4 adopts a convex mirror design, so that the lenticular glass 4 has a magnifying function, that is, it increases the clarity when students observe the image of the rotating body 11 .

Still further, the rotating body 11 is provided with four surfaces, wherein the rotating body 11 is in the shape of a cuboid, and the inside of the rotating body 11 is connected to the rotating shaft 10 through a plurality of connecting plates. The design of the four surfaces can ensure the rotation of the rotating body. When the number of images is 11, the 11 images of the rotating body have sufficient observation area.

Still further, the images on the four sides of the rotating body 11 are detachably connected to the rotating body 11, wherein the detachable connection may be to paste the images on the four sides of the rotating body 11 through Velcro, or It can be fixed on the four surfaces of the rotating body 11 by means of clamping blocks and slots. The effect of such arrangement is that the image and the rotating body 11 can be disassembled and installed, which is convenient for quick replacement of the rotating body 11. The image of each surface is beneficial to the inspection teaching and assessment of the rotating body 11.

Some exemplary embodiments of the present utility model have been described above only by way of illustration. Undoubtedly, for those skilled in the art, without departing from the spirit and scope of the present utility model, various Modifications are made to the described embodiments. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims (9)

1. An eyeball model, comprising the posterior segment of the eye, characterized in that a rotating shaft runs through the posterior segment of the eye, and the rotating shaft is rotationally connected with the posterior segment of the eye, and a rotating body is fixedly connected to the rotating shaft. A fundus patch is arranged on each surface of the rotating body, and a handle is fixedly connected to one end of the rotating body. 2. A kind of eyeball model according to claim 1, characterized in that, the posterior segment of the eye is made of elastic rubber material. 3. An eyeball model according to claim 1, characterized in that the rotating body is provided with four surfaces. 4. A kind of eyeball model according to claim 1, characterized in that, it also comprises a bracket and a hemispherical anterior segment affixed to the top of the bracket, the interior of the anterior segment is provided with a pupil adjustment mechanism, and the pupil adjustment mechanism It includes an elastic circlip fixed on the inner wall of the anterior segment, a lens glass is movably embedded in the central hole of the elastic circlip, and a pneumatic drive assembly for adjusting the horizontal position of the lens glass is provided on one side of the lens glass. 5. The eyeball model according to claim 4, wherein the elastic retaining ring is made of elastic rubber material. 6. An eyeball model according to claim 4, characterized in that the pneumatic drive assembly includes a fixed seat and a piston ring that is dynamically and sealingly connected to the inner side wall of the fixed seat, and the fixed seat is fixed on the inner side wall of the anterior segment A connecting frame is fixedly installed between the piston ring and the lens glass, and a conduit is connected through one side of the fixing seat. 7. An eyeball model according to claim 4, characterized in that the anterior segment and the posterior segment are connected by a zipper. 8 . The eyeball model according to claim 4 , wherein the lens glass is transparent glass, and one side of the rotating body faces the lens glass. 9. The eyeball model according to any one of claims 4-8, wherein the posterior segment of the eye is made of elastic soft material.

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