A cornea protection lens for animals

Abstract

The invention discloses a cornea protection lens for animals, comprising a lens, which is in a concave-convex lens shape and has a smooth inner surface and outer surface, wherein the outer surface is a convex surface and the inner surface is a concave surface. The lens is composed of an inner lens layer and an outer lens layer, and a colored ring band is filled between the inner lens layer and the outer lens layer at the edge thereof by a film pressing method, and two small holes in a circular, square or irregular shape are also provided at the edge of the lens. The lens is made of a soft hydrophilic material with high oxygen permeability and high water content, wherein the oxygen permeability coefficient DK (ISO; hPa) ranges from 30-50, and the water content ranges from 65-78%. Dyes and ultraviolet absorbers are added to the soft hydrophilic material. The invention is specially designed for animals and is a soft contact bandage and therapeutic lens. When worn on the surface of the cornea of ​​an animal, the cornea can be prevented from drying or being stimulated, and the pet can be prevented from touching the cornea. Meanwhile, therapeutic drugs can be dripped between the lens and the cornea to promote corneal epithelial regeneration and relieve pain.

Description

Technical Field

[0001] The invention relates to the technical field of soft corneal contact lenses, in particular to a corneal protective lens for animals. Background Art

[0002] With the changes in social structure and the development of social economy, the number of people living alone and in empty nests has gradually expanded, and pets have gradually become an emotional sustenance. According to survey data, 37.1% of respondents regard pets as their friends, and more than 40% of respondents regard pets as their relatives. This emotional demand has promoted the development of the pet medical economy. Data shows that the scale of China's pet medical market will increase to 267 billion yuan in 2021. With the increase in the number of pets, the future development space of the pet medical market is huge, with an average annual growth rate of more than 10%.

[0003] Corneal ulcers, corneal perforations, and eyelid defects are the most common eye diseases in animals. There are nerves distributed on the surface of the cornea, so animals with corneal diseases often show symptoms of eye pain, such as tearing, half-open eyes (blepharospasm), photophobia, scratching eyes with claws from time to time, conjunctival congestion (white of the eye turns red), corneal edema (black eyeball turns white), etc. If not treated promptly and correctly or if improper care is taken during treatment, the condition may deteriorate rapidly, which may cause adhesion of the cornea and conjunctiva, blindness, or even suppurative panophthalmitis, and ultimately lead to the loss of the eyeball.

[0004] At present, the treatment methods for animal corneal diseases are mostly drug therapy and surgical treatment, but the drugs need to be repeatedly used for sick animals every day, and the drugs are easy to evaporate or be rubbed off by the animals when they are on the surface of the animal's cornea, and are not easy to maintain. Surgical treatment requires conjunctival flap covering, but there is no barrier between the cornea and conjunctiva after surgery, and the cornea and conjunctiva are prone to adhesion. Therefore, it is urgent to develop a corneal protective lens for animals to solve the above technical problems.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a corneal protection lens for animals, which is specially designed for animals. It is a soft contact bandage and therapeutic lens. Wearing it on the surface of the animal's cornea can prevent the cornea from drying or being irritated, and prevent pets from touching the cornea. At the same time, therapeutic drugs can be dripped between the lens and the cornea to promote corneal epithelial regeneration and relieve pain. It has broad application prospects and is conducive to popularization and application.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a corneal protective lens for animals, comprising a lens, which is in the shape of a concave-convex lens, having a smooth inner surface and an outer surface, wherein the outer surface is a convex surface and the inner surface is a concave surface, and the lens is composed of an inner lens layer and an outer lens layer, and a colored ring band is filled between the inner lens layer and the outer lens layer at the edge thereof by a film pressing method, and two small holes in a circular, square or irregular shape are opened at the edge of the lens, and the lens is made of a soft hydrophilic material with high oxygen permeability and high water content, the oxygen permeability coefficient DK (ISO; hPa) ranges from 30 to 50, and the water content ranges from 65 to 78%, and a dye and an ultraviolet absorber are added to the soft hydrophilic material.

[0008] Preferably, the total diameter of the lens is 14.0-35.0 mm.

[0009] Preferably, the base curve radius of curvature of the lens is 8.3-20.0 mm.

[0010] Preferably, the center thickness of the lens is 0.05-0.15 mm.

[0011] Preferably, the lens is formed by one-time compression molding.

[0012] Preferably, the edge of the lens is a rounded edge.

[0013] Preferably, the colored ring band is arranged between 2.0-3.0 mm from the edge of the lens.

[0014] Preferably, the width of the color ring band is 1.0 mm.

[0015] The present invention provides a cornea protection lens for animals, which has the following beneficial effects.

[0016] 1. The present invention is specially designed for animals and is used to isolate the eyelid from the cornea, which can reduce the stimulation of the eyelid to the cornea, prevent the animal from scratching or scratching the cornea again, and use the corneal protection lens to store liquid medicine to treat corneal ulcers in animals and reduce the pain of animals. The base curve size of the lens is adapted to the size of the animal's cornea, and can be stably attached to the cornea; the inner and outer surfaces of the lens are smooth and will not cause secondary damage to the cornea; the edge of the lens adopts a rounded edge, which has good stability and centering to reduce mechanical wear on the ocular surface; dyes and ultraviolet absorbers are added to the material of the lens to protect the animal's eyes, reduce the stimulation of sunlight on the animal's eyes, and prevent wind and sand from blowing into the eyes.

[0017] 2. The present invention is in the shape of a thin concave-convex lens with a smooth and firm surface and a rounded edge design. The total diameter is slightly smaller than the diameter of the animal cornea, and the base curve curvature radius is slightly larger than the anterior surface of the cornea. It has a bandage effect and can treat or assist in the treatment of various ocular surface diseases, such as corneal epithelial damage, corneal ulcers, protect the damaged cornea from stimulation, and promote epithelial cell regeneration.

[0018] 3. The lens of the present invention has two small holes at its edge, which are mainly used to supply oxygen to the cornea, drip liquid medicine, and also facilitate the use of tweezers to pinch and put on the lens. The liquid medicine is dripped through the small holes and penetrates between the lens and the cornea, which can treat animal corneal ulcers and reduce animal pain. It is convenient, safe and comfortable to use.

[0019] 4. The design of the colored ring band at the edge of the lens of the present invention is conducive to observing the wearing condition of the corneal protective lens. When the lens is transparent, it is difficult to observe the wearing condition of the corneal protective lens when it is worn in the animal's eye. Especially when the animal's eye is cloudy or edematous, the wearing condition of the corneal protective lens can be easily observed through the colored ring band. And by filling the colored ring band between the inner lens layer and the outer lens layer by pressing, the colored dye can be prevented from directly contacting the eyes, reducing eye irritation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of a cornea protection lens for animals provided by the present invention;

[0021] Figure 2 A side sectional view and a partial magnified view of a corneal protective lens for animals provided by the present invention;

[0022] Figure 3 A schematic diagram of wearing a corneal protective lens for animals provided by the present invention;

[0023] Figure 4 It is a front view and a side sectional view of Embodiment 1 of the present invention;

[0024] Figure 5 It is a front view and a side sectional view of Embodiment 2 of the present invention;

[0025] Figure 6 It is a front view and a side sectional view of Embodiment 3 of the present invention;

[0026] Figure 7 Front view of the corneal protection lens selection plate for animals.

[0027] In the figure:

[0028] 1. Lens 101. Outer lens layer 102. Inner lens layer 103. Small hole 104. Round edge 105. Colored ring band 2. Animal eye structure 201. Cornea 301. Lens 302. Round small hole 303. Colored ring band 304. Base curve curvature radius 305. Total diameter 306. Center thickness 401. Lens 402. Square small hole 403. Colored ring band 404. Base curve curvature radius 405. Total diameter 406. Center thickness 501. Lens 502. Irregular shaped small hole 503. Colored ring band 504. Base curve curvature radius 505. Total diameter 506. Center thickness 601. Size groove 602. Size groove parameters 603. Select plate name. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments and drawings to help understand the content of the present invention.

[0030] like Figure 1-2As shown, they are respectively a front view, a side sectional view and a partial magnified view of a corneal protective lens for animals provided by the present invention. The corneal protective lens for animals comprises a lens 1, which is in the shape of a concave-convex lens, and has a smooth inner surface and an outer surface, wherein the outer surface is a convex surface and the inner surface is a concave surface. The smooth inner and outer surfaces can avoid secondary damage to the cornea 201 of the animal. The lens 1 is composed of an inner lens layer 102 and an outer lens layer 101, and a colored ring band 105 is filled between the inner lens layer 102 and the outer lens layer 101 at its edge by a film pressing method. The design of the colored ring band at the edge is conducive to observing the wearing condition of the corneal protective lens. When the lens 1 is transparent, it is worn in the animal's eye, and the wearing condition of the corneal protective lens cannot be well observed. Especially when the animal's eye is cloudy or edematous, the wearing condition of the corneal protective lens can be easily observed through the colored ring band 105. In addition, a colored ring band 105 is filled between the inner lens layer 102 and the outer lens layer 101 by a film pressing method, so that the colored dye can be prevented from directly contacting the eyes and eye irritation can be reduced. The edge of the lens 1 is provided with two small holes 103 in a circular, square or irregular shape. The two small holes are provided at the edge, which are mainly used to supply oxygen to the cornea 201 and drip the liquid medicine. It is also convenient to use tweezers to grasp and pinch to wear the lens 1. The liquid medicine is dripped through the small holes 103 and penetrated between the lens 1 and the cornea 201, which can treat the ulcer of the cornea 201 of the animal and reduce the pain of the animal. The use is convenient, safe and comfortable. The lens 1 is made of a soft hydrophilic material with high oxygen permeability and high water content. The oxygen permeability coefficient DK (ISO; hPa) ranges from 30 to 50, and the water content ranges from 65 to 78%. The soft hydrophilic material is added with dyes and ultraviolet absorbers, which can reduce the irritation of sunlight to the animal's eyes and prevent wind and sand from blowing into the eyes. The lens 1 can be worn continuously for more than 48 hours. Preferably, the total diameter of the lens 1 is 14.0-35.0 mm. The base curve radius of curvature of the lens 1 is 8.3-20.0 mm. The center thickness of the lens 1 is 0.05-0.15 mm. The lens 1 is molded by one-time die-casting injection molding. The edge of the lens 1 is a circular edge 104, which has good stability and centering to reduce mechanical wear on the ocular surface. The color ring band 105 is set between 2.0-3.0 mm from the edge of the lens 1. The width of the color ring band 105 is 1.0 mm. Figure 3 , which is a schematic diagram of wearing a corneal protective lens for animals provided by the present invention. When in use, the lens 1 is attached to the cornea 102 of the animal's eye structure 2. Since the base curve size of the lens 1 is adapted to the size of the animal's cornea 102, it can be stably attached to the cornea 102.

[0031] Embodiment 1:

[0032] like Figure 4, which are the front view and side sectional view of Embodiment 1 of the present invention. The corneal protective lens for animals is made of soft, transparent, hydrophilic acrylic material, with an oxygen permeability coefficient DK (ISO; hPa) of 32 and a water content of 72%. The lens 301 includes two circular holes 302. The total diameter 305 of the lens 301 is 14.0 mm, the base curve radius 304 of the lens 301 is 8.3 mm, the center thickness 306 of the lens 301 is 0.05 mm, and the diameter of the circular hole 302 is 1.5 mm.

[0033] This embodiment is suitable for cats or ultra-small dogs with dry eyes, and is mainly used for storing liquid medicine to keep the cornea moist. The design size of the center thickness 306 is 0.05mm. For small-sized eyeballs, the center thickness 306 reduces the pressure of the protective lens and reduces the pain of the animal; the design size of the base curve radius 304 is 8.3mm, which increases the gap between the lens 301 and the animal's cornea, and can ensure that the liquid medicine is stored between the lens 301 and the cornea, and keep the cornea moist; the design diameter size of the circular hole 302 is 1.5mm. The circular hole 302 has the function of supplying oxygen to the cornea and dripping liquid medicine, and it is also convenient to use tweezers to grasp and wear the lens 301.

[0034] Embodiment 2:

[0035] like Figure 5 , which are the front view and side sectional view of Embodiment 2 of the present invention. The corneal protective lens for animals is made of soft, transparent, hydrophilic acrylic material, with an oxygen permeability coefficient DK (ISO; hPa) of 32 and a water content of 75%. The lens 401 includes two square holes 402. The total diameter 405 of the lens 401 is 18.0 mm, the base curve radius 404 of the lens 401 is 9.6 mm, the center thickness 406 of the lens 401 is 0.12 mm, and the side length of the square hole 402 is 1.2 mm.

[0036] This embodiment is suitable for use by medium-sized dogs with corneal ulcers, and is mainly used for healing corneal wounds and relieving animal eye pain. The central thickness 406 is designed to be 0.12 mm. For medium-sized eyeballs, the central thickness 406 increases the pressure of the protective lens and reduces the pain of the animal; the base curve radius 404 is designed to be 9.6 mm, which is suitable for the corneal size of medium-sized dogs, so that the corneal protective lens can be stably attached to the cornea to prevent the corneal protective lens from sliding and dislocating; the square hole 402 is designed to have a side length of 1.2 mm. The square hole 402 has the function of supplying oxygen to the cornea and dripping anti-inflammatory drugs, and is also convenient for using tweezers to grasp and pinch to wear the lens 401.

[0037] Embodiment 3:

[0038] like Figure 6, which are the front view and side sectional view of Embodiment 3 of the present invention. The corneal protective lens for animals is made of soft hydrophilic acrylic material, with dyes and ultraviolet absorbers added, and is gray in color. The oxygen permeability coefficient DK (ISO; hPa) is 45, and the water content is 74%. The lens 501 includes two irregularly shaped small holes 502. The total diameter 505 of the lens 501 is 35.0 mm, the base curve radius 504 of the lens 501 is 18.0 mm, the center thickness 506 of the lens 501 is 0.12 mm, and the maximum diameter size of the irregular small hole 502 is 1.2 mm.

[0039] This embodiment is suitable for use by racing horses, mainly for wind and sand protection, and reducing light intensity. The design size of the center thickness 506 is 0.12mm. For large-sized eyeballs, the center thickness 506 reduces the pressure of the protective lens and can avoid a strong foreign body sensation; the design size of the base curve radius of curvature 504 is 18.0mm, which is suitable for the size of the horse's cornea, so that the corneal protective lens can be stably attached to the cornea to prevent the corneal protective lens from sliding and dislocation; the design maximum size of the irregular-shaped small hole 502 is 1.2mm, and the irregular-shaped small hole 502 has the function of supplying oxygen to the cornea, and is also convenient for using tweezers to grasp and pinch to wear the lens 501. Dyes and ultraviolet absorbers are added to the manufacturing materials of this embodiment, which can absorb infrared rays and 98% of ultraviolet rays, effectively reduce light intensity, reduce surrounding brightness, help racehorses concentrate, avoid external influences, and reduce eye irritation caused by sunlight; and can prevent mud and sand from mud and sand races from blowing into the horse's eyes, so that the racehorses can finish the race smoothly without being hindered by the venue.

[0040] The method of use of the present invention is:

[0041] (1) Use the corneal protection lens selection plate for animals (such as Figure 7 The size of the animal cornea 201 is compared with the size of the animal cornea 201, and a suitable animal cornea protective lens is selected. Generally, the total diameter of the animal cornea protective lens is required to be about 0.5 mm smaller than the diameter of the animal cornea 201. The surface of the animal cornea protective lens selection board is marked with the selection board name 603, and size grooves 601 of different sizes are provided on both sides, and the size groove parameter 602 is marked above the size groove 601.

[0042] (2) After selecting the corneal protective lens for animals, place it in physiological saline for cleaning.

[0043] (3) Wearing the lens 1 can be done with tweezers or fingers. When wearing, the tweezers or fingers need to be cleaned and disinfected. After confirming the front and back of the lens 1, clamp the lens 1 with tweezers or fingers and stick the lens 1 to the surface of the cornea 201. If the operation is inconvenient, the tweezers can also be inserted into the two symmetrical holes 103 of the lens 1 to facilitate the tweezers to grab. After wearing the lens 1, make sure that the hole 103 on the lens 1 is located above the eyeball, and then manually open and close the eyelids several times to ensure the fit between the lens 1 and the cornea 201.

[0044] (4) Infuse the drug solution, align the injection head of the drug solution with the small hole 103, and gently squeeze the drug solution inward to ensure that the drug solution is evenly spread between the lens 1 and the animal's cornea 201, so that the drug solution covers the surface of the cornea 201, keeps the surface of the cornea 201 moist, and ensures that the drug solution can cover the surface of the cornea 201 for a long time and is not easy to evaporate or rub off.

[0045] (5) Remove the lens 1 by using tweezers or by pinching the lens 1 between the thumb and index finger and then removing it. The removed lens 1 is stored in physiological saline.

[0046] The present invention is specially designed for animals. It is a soft contact bandage and therapeutic lens. Wearing it on the surface of the cornea 201 of an animal can prevent the cornea from drying or being irritated. The corneal protective lens is used to isolate the eyelid from the cornea 201, which can reduce the stimulation of the eyelid to the cornea 201, prevent the pet from touching the cornea 201, and prevent the animal from scratching or scratching the cornea 201 for the second time. At the same time, therapeutic drugs can be dripped between the lens 1 and the cornea 201 to promote the regeneration of the corneal epithelium 201 and relieve pain. In addition, dyes and ultraviolet absorbers are added to the lens 1 material to protect the animal's eyes and reduce the stimulation of sunlight to the animal's eyes, while preventing wind and sand from blowing into the eyes. The present invention is in the shape of a thin concave-convex lens, with a smooth and firm surface, and the edge is designed with a circular edge 104. The total diameter is slightly smaller than the diameter of the cornea 201 of the animal's eye, and the base curve curvature radius is slightly larger than the front surface of the cornea 201. It has a bandage effect and can treat or assist in the treatment of various ocular surface diseases, such as corneal epithelial damage, corneal ulcers, protect the damaged cornea from stimulation, and promote epithelial cell regeneration.

[0047] The invention concept is described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the core idea of ​​the invention. It should be pointed out that any obvious modification, equivalent substitution or other improvement made by a person of ordinary skill in the art without departing from the invention concept should be included in the protection scope of the present invention.

Claims

1. A corneal protective lens for animals, characterized in that: The invention comprises a lens, which is in the shape of a concave-convex lens and has a smooth inner surface and outer surface, wherein the outer surface is a convex surface and the inner surface is a concave surface. The lens is composed of an inner lens layer and an outer lens layer, and a colored ring band is filled between the inner lens layer and the outer lens layer at the edge thereof by a film pressing method, and two small holes in a circular, square or irregular shape are opened at the edge of the lens. The lens is made of a soft hydrophilic material with high oxygen permeability and high water content, wherein the oxygen permeability coefficient DK ranges from 30 to 50, and the water content ranges from 65 to 78%. Dyes and ultraviolet absorbers are added to the soft hydrophilic material, and the edge of the lens is a circular edge, wherein the total diameter is slightly smaller than the diameter of the cornea of ​​the animal eye, and the base curve curvature radius is slightly larger than the front surface of the cornea, so that the corneal protective lens for animals has a bandage effect.

2. The cornea protection lens for animals according to claim 1, characterized in that: The total diameter of the lens is 14.0-35.0 mm.

3. The cornea protection lens for animals according to claim 2, characterized in that: The base curve curvature radius of the lens is 8.3-20.0 mm.

4. The cornea protection lens for animals according to claim 3, characterized in that: The center thickness of the lens is 0.05-0.15 mm.

5. The cornea protection lens for animals according to claim 4, characterized in that: The lens is formed by one-time film pressing and injection molding.

6. The cornea protection lens for animals according to claim 5, characterized in that: The color ring band is arranged between 2.0-3.0 mm from the edge of the lens.

7. The cornea protection lens for animals according to claim 6, characterized in that: The width of the color ring band is 1.0 mm.

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