A myopia glasses frame

Abstract

The invention discloses a myopia glasses frame, comprising a glasses frame and temples arranged at two ends of the glasses frame, wherein two groups of lenses are symmetrically arranged on the glasses frame; the temples are long strip structures, and the temples are rotatably connected to the ends of the glasses frame; the glasses frame and the temples are made of elastic material, and the ends of the two temples can be connected to each other to form a ring structure, and the ring structure formed by the glasses frame and the two temples forms a head cover to be fixed on the head of a rat; and the ring structure formed by the two temples can adjust the angle between the glasses frame and the glasses frame to fit the contour of the rat's head; the myopia glasses frame provided by the invention can adjust the size and wearing angle to fit the contour of the rat's head, so as to avoid the lenses from shifting during wearing, thereby effectively inducing myopia in the rat; meanwhile, the fixing area of ​​the glasses frame is reasonable, so as to improve the adaptability of the rat to wear the glasses, and will not affect the normal eating and living habits of the rat.

Description

Technical Field

[0001] The present invention relates to the technical field of myopia prevention and control, and in particular to a myopia spectacle frame. Background Art

[0002] Myopia is a major global public health problem, and its pathogenesis is complex and has not yet been clarified. Current research believes that myopia mainly includes congenital genetic and acquired environmental factors, the latter of which is closely related to close-range eye use and lack of outdoor activities. Animal experiments are one of the main methods for studying the pathogenesis of myopia, and the selection of experimental animals is the key to successful research and accurate results.

[0003] Rats are docile and cooperative, have a well-developed visual system at birth, develop visually quickly, and have a similar emmetropization mechanism to humans. In addition, rats have larger eyeballs, which is conducive to the measurement of various parameters. They also have the advantages of low cost, strong fertility, and clear animal pedigrees. Therefore, rats are currently used to establish myopia models.

[0004] At present, the commonly used experimental myopia rat modeling methods mainly include form deprivation myopia (FDM) and lens induced myopia (LIM). The FDM model inhibits clear retinal imaging through form deprivation. The continuous blurred image signal is transmitted to the sclera along the choroid, causing the remodeling of the scleral extracellular matrix, promoting accelerated eye growth, and eye refraction changes. The modeling is mainly carried out by suturing the upper and lower eyelids and covering with masks. The principle is more consistent with the myopia mechanism caused by congenital cataracts, ptosis, corneal opacity and other eye diseases with unclear refractive media. The LIM model mainly focuses the image behind the retina by wearing a negative lens on the rat. In order to obtain a clear image, the eyeball will grow in the direction of the focus, causing compensatory growth of the eye axis and inducing myopia.

[0005] Among them, the principle of the LIM rat model is similar to the compensatory growth mechanism of the axial length of the eye after the image is focused on the retina due to accommodation lag caused by long-term close-range eye use in Chinese children and adolescents. Therefore, animal experiments often use this model as a research object to simulate adolescent myopia.

[0006] However, in current animal experiments, the method of making rats wear lenses cannot effectively fix the lenses, so that the lenses often shift while the rats are wearing them, resulting in the rats not wearing the lenses for an effective period of time, making it impossible to guarantee the accuracy of the induced experiment.

[0007] Some experimenters used 2-cm-wide medical tape to fix the PMMA lens in front of the rat's eyes, and then used medical tape to wrap it around and fix it; or they put a white latex balloon headgear with a PMMA lens sewn on it on the rat's head, exposing the left eye, ears, mouth and nose, and adjusted the tightness of the headgear and the position of the eyes.

[0008] However, the above method has limitations such as poor air permeability, restricted activities, and impact on feeding, which can cause local skin ulcers, eye inflammation, mental depression, etc. in rats, increase the mortality rate of rats, and affect the progress of the experiment. Summary of the invention

[0009] The object of the present invention is to provide a myopia frame, which can effectively induce myopia in rats by adjusting the angle and size of the frame to fit the contour of a rat's head, so as to solve the technical problems existing in the prior art.

[0010] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0011] A myopia glasses frame comprises a glasses frame and temples arranged at both ends of the glasses frame, wherein two groups of lenses are symmetrically arranged on the glasses frame; the temples are long strip structures, and the temples are rotatably connected to the ends of the glasses frame; the glasses frame and the temples are made of elastic material, and the ends of the two temples can be connected to each other to form a ring structure, and the ring structure formed by the glasses frame and the two temples forms a head cover to be fixed on the head of a rat; and the ring structure formed by the two temples can adjust the angle between the glasses frame and the temples to fit the contour of the rat's head.

[0012] Furthermore, the frame includes a nose bridge support, annular grooves arranged on both sides of the nose bridge support, and connecting rods arranged on the edges of two annular grooves; the annular grooves are used to install the lenses; the connecting rods are provided with a rotating shaft in a direction perpendicular to the plane where the lenses are located, and a rotating hole is provided in the middle position of the temple, the rotating hole can be clamped on the rotating shaft, and the clearance between the rotating hole and the rotating shaft is matched, so that the temple can rotate around the rotating shaft.

[0013] Furthermore, the two connecting rods are symmetrically arranged on the edges of the two annular grooves, and the two connecting rods and the nose bridge bracket are in a straight line.

[0014] Furthermore, a plurality of rotating shafts are provided at equal intervals on the connecting rod, and the temples are detachably connected relative to the rotating shafts to adjust the size of the head cover formed by the ring-shaped structure formed by the frame and the two temples.

[0015] Furthermore, the ends of the two temples connected to each other are respectively provided with pluggable pins and plugging holes.

[0016] Furthermore, the pins and the holes at the ends of the temples are provided in multiple groups, respectively, so as to adjust the size of the ring structure formed by the two temples.

[0017] Furthermore, the lens includes a convex optical mirror and a mounting boss arranged on the edge of the convex optical mirror, and the mounting boss is used to be clamped in the annular groove.

[0018] Furthermore, the edge of the annular groove extends outward in a direction perpendicular to the nose bridge support to form a baffle to block the rat's line of sight, so that the rat's line of sight is limited within the range of the lens.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The myopia glasses frame provided by the present invention is an elastic glasses frame, which can adjust the size and wearing angle to fit the contour of the rat's head to avoid the lens from shifting during wearing, thereby effectively inducing myopia in the rat; at the same time, the fixing area of ​​the glasses frame is reasonable, which improves the adaptability of the rat to wear and will not affect the rat's normal eating and living habits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a myopia frame;

[0023] Figure 2 It is a structural schematic diagram of the front side of the frame;

[0024] Figure 3 It is a structural schematic diagram of the back of the frame;

[0025] Figure 4 is a schematic diagram of the structure of the lens;

[0026] Figure 5 It is a schematic diagram of the structure at the rotating shaft.

[0027] The numbers in the figure represent the following:

[0028] 1-frame, 2-tip, 3-lens;

[0029] 11-nose bridge support, 12-annular groove, 13-connecting rod, 14-rotating shaft, 15-baffle, 16-block;

[0030] 21-rotating hole, 22-latch pin, 23-jack;

[0031] 31- convex optical mirror, 32- mounting boss. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1 As shown, the present invention provides an embodiment of a myopia glasses frame 1, comprising a glasses frame 1, and temples 2 arranged at two ends of the glasses frame 1, and two groups of lenses 3 are symmetrically arranged on the glasses frame 1.

[0034] The frame 1 and the temples 2 are made of elastic material, specifically thermoplastic polyurethane elastomer (TPU material), and are made by fused deposition 3D printing technology.

[0035] Lens 32 is lens 3 used in PMMA animal models, which is myopia lens 3 and is provided by Guangzhou Jingde Jiarun Vision Technology Co., Ltd.

[0036] The temple 2 is a long strip structure, and the ends of the two temples 2 can be connected to each other to form a ring structure to be fixed on the neck of the guinea pig.

[0037] The ring-shaped structure formed by the frame 1 and the two temples 2 forms a head cover, which can wrap the entire head of the guinea pig, thereby solving the inadaptability of the guinea pig caused by the previous guinea pig modeling.

[0038] The temples 2 are rotatably connected to the ends of the frame 1, so that the ring structure formed by the two temples 2 can adjust the angle with the frame 1 to better fit the contour of the rat's head, so that the angle of the lens 3 can better fit the rat's eye, thereby avoiding the lens 3 from shifting during wearing, thereby effectively inducing myopia in the rat.

[0039] The overall thickness of the frame 1 is 2 mm, which can meet the curve of the guinea pig's head while also having a certain rigidity, so that the frame 1 as a whole can bend and maintain a stable structure for easy wearing.

[0040] In this embodiment, an embodiment of a frame is provided, such as Figure 2 and Figure 3 As shown:

[0041] The frame 1 includes a nose bridge support 11 , annular grooves 12 arranged on both sides of the nose bridge support 11 , and connecting rods 13 arranged on the edges of the two annular grooves 12 ; the annular grooves 12 are used to install the lenses 3 .

[0042] An embodiment of the rotation of the temple 2 and the frame 1 is also provided, wherein the connecting rod 13 is provided with a rotating shaft 14 in a direction perpendicular to the plane where the lens 3 is located, and a rotating hole 21 is provided in the middle position of the temple 2, the rotating hole 21 can be clamped on the rotating shaft 14, and the clearance between the rotating hole 21 and the rotating shaft 14 is matched, so that the temple 2 can rotate around the rotating shaft 14.

[0043] Furthermore, the two connecting rods 13 are symmetrically arranged on the edges of the two annular grooves 12, and the two connecting rods 13 and the nose bridge support 11 are in a straight line, so that the entire frame 1 can better wrap the head of the rat.

[0044] In this embodiment, a plurality of rotating shafts 14 are provided at equal intervals on the connecting rod 13 , and the temples 2 are detachably connected to the rotating shafts 14 to adjust the size of the headgear formed by the ring-shaped structure formed by the frame 1 and the two temples 2 .

[0045] Furthermore, as shown in FIG. 5 , a stopper 16 is provided at the end of the rotating shaft 14. The stopper 16 is made of rubber material and is large enough to be inserted into the rotating hole 21 of the temple 2 while preventing it from falling off from the rotating hole 21 , thereby preventing the temple 2 from falling off from the frame 1 during the rat matching process.

[0046] The ends of the two temples 2 that are connected to each other are respectively provided with plug-in pins 22 and sockets 23; the end tube pins 22 and sockets 23 of the two temples 2 are connected to form a ring structure that can be wrapped around the neck of the guinea pig, so that the frame 1 can wrap the entire head of the guinea pig and prevent the frame 1 from falling off the guinea pig's head.

[0047] In this embodiment, three groups of pins 22 are respectively provided at both ends of one of the temples 2, and three groups of sockets 23 are respectively provided at both ends of the other temple 2, and the spacing between adjacent pins 22 is consistent with the spacing between adjacent sockets 23.

[0048] Furthermore, multiple groups of pins 22 and holes 23 are provided at the ends of the temples 2 to adjust the size of the ring structure formed by the two temples 2; they can adapt to rats with different head sizes, so that the entire frame 1 and the rat's head fit better.

[0049] Further, such as Figure 4 As shown, the lens 3 includes a convex optical mirror 31 and a mounting boss 32 arranged on the edge of the convex optical mirror 31 , and the mounting boss 32 is used to be clamped in the annular groove 12 .

[0050] In this embodiment, since the annular groove 12 is made of a superelastic material, in order to reinforce the installation of the lens 3, quick-drying glue is used to reinforce the space between the mounting boss 32 and the annular groove 12.

[0051] Further, such as Figure 2 and Figure 3 As shown, the edge of the annular groove 12 extends outward in a direction perpendicular to the nose bridge support 11 to form a baffle 15. When worn, the baffle 15 is located above the annular groove 12 to block the rat's line of sight, so that the rat's line of sight is limited to the range of the lens 3, thereby better inducing myopia in the rat.

[0052] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A myopia glasses frame, characterized in that: It comprises a frame (1), and temples (2) arranged at two ends of the frame (1), wherein two groups of lenses (3) are symmetrically arranged on the frame (1); The temple (2) is a long strip-shaped structure, and the temple (2) is rotatably connected to the end of the frame (1); the frame (1) and the temple (2) are made of elastic material, and the ends of the two temples (2) can be connected to each other to form a ring-shaped structure, and the ring-shaped structure formed by the frame (1) and the two temples (2) forms a head cover to be fixed on the head of the rat; and the ring-shaped structure formed by the two temples (2) can adjust the angle between the frame (1) and the temple to fit the contour of the rat's head; The spectacle frame (1) comprises a nose bridge support (11), annular grooves (12) arranged on both sides of the nose bridge support (11), and connecting rods (13) arranged on the edges of two annular grooves (12); The annular groove (12) is used for mounting the lens (3); the connecting rod (13) is provided with a rotating shaft (14) in a direction perpendicular to the plane where the lens (3) is located; a rotating hole (21) is provided in the middle of the temple (2); the rotating hole (21) can be clamped on the rotating shaft (14), and there is a clearance fit between the rotating hole (21) and the rotating shaft (14), so that the temple (2) can rotate around the rotating shaft (14); The two connecting rods (13) are symmetrically arranged at the edges of the two annular grooves (12), and the two connecting rods (13) and the nose bridge bracket (11) are in a straight line; A plurality of rotating shafts (14) are arranged at equal intervals on the connecting rod (13), and the temples (2) are detachably connected relative to the rotating shafts (14) so ​​as to adjust the size of the head cover formed by the ring-shaped structure formed by the frame (1) and the two temples (2).

2. The myopia spectacle frame according to claim 1, characterized in that: The ends of the two temple legs (2) connected to each other are respectively provided with a plug-in pin (22) and a plug-in hole (23).

3. The myopia spectacle frame according to claim 2, characterized in that: There are multiple groups of latches (22) and sockets (23) located at the ends of the temples (2) so as to adjust the size of the ring-shaped structure formed by the two temples (2).

4. The myopia spectacle frame according to claim 3, characterized in that: The lens (3) comprises a convex optical lens (31) and a mounting boss (32) arranged on the edge of the convex optical lens (31), wherein the mounting boss (32) is used to be clamped in the annular groove (12).

5. The myopia spectacle frame according to claim 4, characterized in that: The edge of the annular groove (12) extends outward in a direction perpendicular to the nose bridge support (11) to form a baffle (15) to block the sight of the rat, so that the sight of the rat is limited within the range of the lens (3).

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