CN223640952U - Disposable shading medical cornea protection lens - Google Patents
Disposable shading medical cornea protection lensInfo
- Publication number
- CN223640952U CN223640952U CN202422492855.2U CN202422492855U CN223640952U CN 223640952 U CN223640952 U CN 223640952U CN 202422492855 U CN202422492855 U CN 202422492855U CN 223640952 U CN223640952 U CN 223640952U
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- cornea
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Abstract
本实用新型公开了一种一次性可遮光医用角膜保护镜，所述角膜保护镜包括四层结构，由外向内依次为防划层、保湿层、色素层以及贴合层；所述防划层、所述保湿层、所述贴合层依次贴合并直接相连，周缘一体式固定，组成弧形的镜片本体；所述色素层设置在所述保湿层和所述贴合层之间，为黑色半透光或不透光色素涂层，透光率为0‑50％。本实用新型中所述一次性可遮光医用角膜保护镜可以降低角膜进光量，并防止器械机械损伤角膜，具有广泛应用前景。
This utility model discloses a disposable, light-blocking medical corneal protective lens. The corneal protective lens comprises four layers, from the outside in: a scratch-resistant layer, a moisturizing layer, a pigment layer, and an adhesive layer. The scratch-resistant layer, the moisturizing layer, and the adhesive layer are sequentially bonded and directly connected, and integrally fixed at the periphery to form an arc-shaped lens body. The pigment layer is disposed between the moisturizing layer and the adhesive layer, and is a black, semi-transparent or opaque pigment coating with a light transmittance of 0-50%. The disposable, light-blocking medical corneal protective lens of this utility model can reduce the amount of light entering the cornea and prevent mechanical damage to the cornea from instruments, and has broad application prospects.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and relates to a disposable shading medical cornea protecting lens.
Background
The cornea is the transparent portion of the anterior outer layer of the eye wall, about 1 mm thick, and is the most important refractive component. The cornea has very sensitive nerve endings and is very sensitive to foreign bodies and injuries. Meanwhile, in order to keep transparent, the cornea is free of blood vessels, and nutrition and oxygen are mainly obtained through tears and aqueous humor, so that a tear film on the surface of the cornea is required to be constantly and instantaneously maintained when eyes are opened. In summary, cornea perception is most acute, even slight injury causes discomfort and recovery is difficult, so obvious pain, photophobia, lacrimation and facial spasm can occur after injury.
However, during surgery, laser treatment, and minimally invasive treatment, various light sources such as shadowless lamps and lasers are directly irradiated, which not only causes great discomfort to patients, but also easily damages the glasses, and serious ocular fundus changes even affect vision. Particularly in laser treatment of the periocular region, high-energy laser treatment is prone to irreversible damage to the fundus.
Meanwhile, in the operation or the operation process of eyes or eyes, on one hand, the operation field needs to be fully exposed, and on the other hand, the eyes of the patient need to be opened for a long time, and cornea damage is easily caused by long-time exposure of the cornea. Especially in the cosmetic operations such as double eyelid, inner canthus shaping and eyelid shaping, the discomfort of the patient is greatly increased due to the need of the patient to repeatedly open eyes and observe the morphological change, and the serious patient may cause fundus damage. In addition, the patient clearly sees the doctor's operation during the operation or procedure, greatly increasing the anxiety of the patient. In addition, repeated periocular manipulation is prone to scratch the cornea, causing discomfort to the patient in the light and damage to the cornea in the heavy. Therefore, a method is needed to effectively prevent strong light, protect cornea, not block operation vision, and conveniently adjust the form of glasses.
In the prior art, by means of exhort patients closing eyes, externally-used light shields and the like, not only is the operation vision affected, but also the effect is unreliable. Meanwhile, many clinical operations require the patient to match with the eyes, and the discomfort of the patient is greatly increased in the process, and the eye health is influenced due to overlong time, so that the final prognosis is influenced. Ophthalmic surgery can also be covered with wet gauze, but this approach suffers from a number of drawbacks including shifting of the gauze, obstruction of the surgical field, and rubbing of the gauze itself against the cornea. There are also related patents that design cornea protection mirrors with sandwich structure, and generally use opaque materials such as gauze, which has the advantage of absorbing the seepage during the operation. The main defect of the structure is that the structure is completely opaque, and patients are often required to observe and evaluate the treatment effect through a mirror during eye surgery and laser treatment, and the treatment mode is adjusted in time. At this time, the structural design of complete shading cannot meet clinical requirements.
Disclosure of utility model
In order to solve the defects in the prior art, the utility model aims to provide a disposable shading medical cornea protecting lens.
The utility model provides a disposable shading medical cornea protecting lens which comprises a four-layer structure, wherein an scratch-proof layer, a moisturizing layer, a pigment layer and a laminating layer are sequentially arranged from outside to inside.
The scratch-resistant layer, the moisturizing layer and the laminating layer are sequentially laminated and directly connected, the periphery is integrally fixed to form an integral body to form an arc-shaped lens body, a pigment layer is arranged between the moisturizing layer and the laminating layer, the pigment layer is a black semi-transparent or opaque pigment coating, and the light transmittance of the pigment layer can be designed to be 0-50%, preferably 20%, according to clinical requirements.
The laminating layer and the moisturizing layer are made of materials of contact lenses, and have good ventilation and moisturizing characteristics, and the materials comprise a Hydrogel (HEMA) material, a nonionic hydrogel (HEMA+NVP) material, a silicon hydrogel (HEMA+silicon) material, and preferably a silicon hydrogel material. The concave surface on the inner side of the laminating layer is a smooth plane, the diameter is slightly larger than the diameter of the cornea of a human body, the diameter is in the range of 13.80-14.50mm, preferably 14.2mm, the base arc is slightly larger than the front surface of the cornea, the size is 8.0-8.9mm, preferably 8.6mm, and the center thickness is 0.06-0.20mm, preferably 0.10mm.
The moisturizing layer covers the outer side of the attaching layer, has the same diameter as the attaching layer, has the diameter ranging from 13.80 mm to 14.50mm, preferably 14.2mm, has a base arc slightly larger than the front surface of the cornea, has the size ranging from 8.0 mm to 8.9mm, preferably 8.6mm, and has the center thickness ranging from 0.06 mm to 0.20mm, preferably 0.10mm.
The scratch-resistant layer is made of thermoplastic polyurethane, the toughness and scratch resistance of the product are improved, the scratch-resistant layer is covered on the outer side of the moisture-preserving layer, the diameter is the same as that of the moisture-preserving layer, the diameter range is 13.80-14.50mm, preferably 14.2mm, the base arc is slightly larger than the front surface of the cornea, the size is 8.0-8.9mm, preferably 8.6mm, and the center thickness is 0.01-0.10mm, preferably 0.05mm.
The pigment layer adopts a black semi-transparent or opaque pigment coating, the light transmittance of the cornea protecting lens is adjusted through pigment distribution, and the light transmittance is 0-50%, preferably 20%. The pigment layer is consistent with the centers of the moisturizing layer and the laminating layer, the diameter is slightly larger than the pupil diameter and smaller than the cornea diameter, and the diameter is 8.5mm-13.0mm, preferably 9.0mm.
In a specific embodiment, the outer side of the scratch-proof layer and/or the inner side of the adhesive layer may also be provided with an antibacterial coating and/or a moisture-retaining coating, or other functional and effect coatings.
The utility model has the beneficial effects that the utility model designs a novel disposable medical cornea contact lens with the function of shading light and protecting cornea on the basis of the decorative colored plain contact lens. On one hand, the utility model is different from the existing cornea protecting lens, increases an anti-scratch layer, improves the capability of protecting cornea and prevents cornea scratch during operation, on the other hand, the utility model adopts a pigment layer covering pupil area as a structure for adjusting the shading capability of the cornea protecting lens, can effectively reduce the whole thickness of the cornea protecting lens and increase the using comfort, and finally, compared with the existing cornea contact lens color-changing coating structure, the pigment layer structure adopted by the utility model is more mature in production process and product stability, and simultaneously, the light inlet quantity can be more accurately regulated and controlled by adjusting pigment distribution of the pigment layer.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the structural separation of the cornea protecting lens of the present utility model.
Fig. 2 is a schematic view of the cornea protecting lens of the present utility model in section (left side) and in front (right side) configuration.
Detailed Description
The utility model will be described in further detail with reference to the following specific examples and drawings. The procedures, conditions, experimental methods, etc. for carrying out the present utility model are common knowledge and common knowledge in the art, except for the following specific references, and the present utility model is not particularly limited.
The utility model provides a disposable shading medical cornea protection lens which comprises a four-layer structure, wherein an scratch prevention layer, a moisturizing layer, a pigment layer and a bonding layer are sequentially arranged from outside to inside, the scratch prevention layer, the moisturizing layer and the bonding layer are sequentially bonded and directly connected, the periphery of the moisture prevention layer, the moisturizing layer and the bonding layer are integrally fixed to form an arc-shaped lens body, the pigment layer is arranged between the moisturizing layer and the bonding layer and is a black semi-transparent or opaque pigment coating, and the light transmittance is 0-50%. The disposable shading medical cornea protecting lens can reduce the cornea light inlet amount, prevent the cornea from being mechanically damaged by instruments and has wide application prospect.
As shown in fig. 1 and 2, the utility model provides a cornea protecting lens, which comprises four layers of structures, namely a cornea side is taken as an inner side, a cornea side is taken as an outer side, and an anti-scratch layer 4, a moisturizing layer 3, a pigment layer 2 and a bonding layer 1 are sequentially arranged from outside to inside.
The cornea protecting lens is designed for disposable use, adopts wet and hot steam sterilization treatment, is soaked in sterile physiological saline, adopts radiation sterilization treatment in the inner package, adopts vacuum sealing for preservation in the outer package, and ensures the sterile operation used in the operation.
The scratch-resistant layer 4, the moisturizing layer 3 and the laminating layer 1 are laminated and directly connected, edges are integrally fixed to form a whole body to form an arc-shaped lens body, a pigment layer 2 is arranged between the moisturizing layer 3 and the laminating layer 1, the pigment layer 2 is a black semi-transparent or opaque pigment coating, and the light transmittance of the pigment coating can be designed to be 0-50%, preferably 20%, according to clinical requirements.
The laminating layer 1 and the moisturizing layer 3 are made of materials of contact lenses, and have good ventilation and moisturizing characteristics, and are selected from Hydrogel (HEMA) materials, nonionic hydrogel (HEMA+NVP) materials and silicon hydrogel (HEMA+silicon) materials, preferably silicon hydrogel materials. The concave surface of the inner side of the laminating layer 1 is a smooth plane, the diameter is slightly larger than the diameter of the cornea of a human body, the diameter is in the range of 13.80-14.50mm, preferably 14.2mm, the base arc is slightly larger than the front surface of the cornea, the size is 8.0-8.9mm, preferably 8.6mm, and the center thickness is 0.06-0.20mm, preferably 0.10mm.
The moisturizing layer 3 covers the outer side of the attaching layer 1, has the same diameter as the attaching layer 1, has the diameter ranging from 13.80 mm to 14.50mm, preferably 14.2mm, has a base arc slightly larger than the front surface of the cornea, has the size ranging from 8.0 mm to 8.9mm, preferably 8.6mm, and has the center thickness ranging from 0.06 mm to 0.20mm, preferably 0.10mm.
The scratch-resistant layer 4 is made of thermoplastic polyurethane, the toughness and scratch resistance of the product are improved, the product is covered on the outer side of the moisture-preserving layer 3, the diameter is the same as that of the moisture-preserving layer 3, the diameter range is 13.80-14.50mm, preferably 14.2mm, the base arc is slightly larger than the front surface of the cornea, the size is 8.0-8.9mm, preferably 8.6mm, and the center thickness is 0.01-0.10mm, preferably 0.05mm.
The pigment layer 2 adopts a black semi-transparent or opaque pigment coating, and the light transmittance of the cornea protecting lens is adjusted by pigment distribution, and the light transmittance is 0-50%, preferably 20%. The pigment layer 2 is consistent with the center of the moisturizing layer 3 or the laminating layer 1, and has a diameter slightly larger than the pupil diameter and smaller than the cornea diameter, and the diameter is 8.5mm-13.0mm, preferably 9.0mm.
In the specific implementation process, the inner side (namely the concave surface) of the laminating layer 1 is a smooth plane, sodium hyaluronate is coated in advance to play a role in lubrication and moisture retention, the pigment layer 2 is directly coated on the outer side surface of the laminating layer 1, namely the convex surface, slightly larger than the maximum diameter of the pupil, so that the pupil is fully covered, the purpose of shading light is achieved, the moisture retention layer 3 is directly covered on the outer side of the laminating layer 1, namely the outer side of the pigment layer 2, on one hand, the function of moisture retention and cornea protection is achieved, on the other hand, the pigment layer 2 is prevented from falling off, and the scratch prevention layer 4 is directly covered on the outer side of the moisture retention layer 3 and is used for preventing a device from scratching the cornea.
In a specific embodiment, an antibacterial coating and/or a moisture-retaining coating, or a coating with other functions and effects, may also be added to the outside of the scratch-resistant layer 4 and/or to the inside of the conformable layer 1.
Example 1
The embodiment provides a disposable shading medical cornea protection lens, the cornea protection lens comprises a lens body, the lens body comprises an outer scratch-proof layer 4, a moisturizing layer 3 and an inner laminating layer 1, and a pigment layer 2 is arranged between the moisturizing layer 3 and the laminating layer 1 of the lens body.
The inner side surfaces of the scratch-proof layer 4 and the moisturizing layer 3, the pigment layer 2 and the outer side surface of the bonding layer 1 are tightly bonded, and the peripheries of the scratch-proof layer 4, the moisturizing layer 3 and the bonding layer 1 are bonded and fixed;
The diameter of the scratch-proof layer 4 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.05mm;
the diameter of the moisturizing layer 3 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.10mm.
The pigment layer 2 is a black semitransparent pigment coating arranged between the moisturizing layer 3 and the attaching layer 1, and the light transmittance is 20%;
The center of the pigment layer 2 is consistent with the laminating layer 1, and the diameter size is 9.0mm.
The diameter of the laminating layer 1 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.10mm.
Example 2
The embodiment provides a disposable shading medical cornea protection lens, the cornea protection lens comprises a lens body, the lens body comprises an outer scratch-proof layer 4, a moisturizing layer 3 and an inner laminating layer 1, and a pigment layer 2 is arranged between the moisturizing layer 3 and the laminating layer 1 of the lens body.
The inner side surfaces of the scratch-proof layer 4 and the moisturizing layer 3, the pigment layer 2 and the outer side surface of the laminating layer 1 are tightly laminated, and the scratch-proof layer 4, the moisturizing layer 3 and the periphery of the laminating layer 1 are fixedly laminated.
The diameter of the scratch-proof layer 4 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.05mm;
the diameter of the moisturizing layer 3 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.10mm.
The pigment layer 2 is a black semitransparent pigment coating arranged between the moisturizing layer 3 and the attaching layer 1, and the light transmittance is 20%;
The center of the pigment layer 2 is consistent with the laminating layer 1, and the diameter size is 9.0mm.
The diameter of the laminating layer 1 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.10mm.
An antibacterial coating is also added to the outer side of the scratch-proof layer 4, and is used for resisting bacteria of the cornea protecting lens in use and preventing possible infection.
Example 3
The embodiment provides a disposable shading medical cornea protection lens, the cornea protection lens comprises a lens body, the lens body comprises an outer scratch-proof layer 4, a moisturizing layer 3 and an inner laminating layer 1, and a pigment layer 2 is arranged between the moisturizing layer 3 and the laminating layer 1 of the lens body.
The inner side surfaces of the scratch-proof layer 4 and the moisturizing layer 3, the pigment layer 2 and the outer side surface of the laminating layer 1 are tightly laminated, and the scratch-proof layer 4, the moisturizing layer 3 and the periphery of the laminating layer 1 are fixedly laminated.
The diameter of the scratch-proof layer 4 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.05mm;
the diameter of the moisturizing layer 3 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.10mm.
The pigment layer 2 is a black semitransparent pigment coating arranged between the moisturizing layer 3 and the attaching layer 1, and the light transmittance is 20%;
The center of the pigment layer 2 is consistent with the laminating layer 1, and the diameter size is 9.0mm.
The diameter of the laminating layer 1 is in a range of 14.2mm, the base arc is in a range of 8.6mm, and the center thickness is 0.10mm.
And a moisturizing coating is further added to the inner side of the laminating layer 1 and used for moisturizing the cornea protecting lens in use, so that the comfort level of use is improved.
Example 4
The embodiment provides a disposable shading medical cornea protection lens, the cornea protection lens comprises a lens body, the lens body comprises an outer scratch-proof layer 4, a moisturizing layer 3 and an inner laminating layer 1, and a pigment layer 2 is arranged between the moisturizing layer 3 and the laminating layer 1 of the lens body.
The inner side surfaces of the scratch-proof layer 4 and the moisturizing layer 3, the pigment layer 2 and the outer side surface of the laminating layer 1 are tightly laminated, and the scratch-proof layer 4, the moisturizing layer 3 and the periphery of the laminating layer 1 are fixedly laminated.
The diameter of the scratch-proof layer 4 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.05mm;
the diameter of the moisturizing layer 3 is 14.2mm, the base arc is 8.6mm, and the center thickness is 0.10mm.
The pigment layer 2 is a black semitransparent pigment coating arranged between the moisturizing layer 3 and the attaching layer 1, and the light transmittance is 20%;
The center of the pigment layer 2 is consistent with the laminating layer 1, and the diameter size is 9.0mm.
The diameter of the laminating layer 1 is in a range of 14.2mm, the base arc is in a range of 8.6mm, and the center thickness is 0.10mm.
In this embodiment, an antibacterial coating is further added to the outer side of the scratch-proof layer 4 for antibacterial and preventing possible infection when the cornea protecting lens is in use, and a moisturizing coating is further added to the inner side of the attaching layer 1 for moisturizing the cornea protecting lens when in use, so that the comfort of use is increased.
In the description of the present application, it should be understood that the orientation or positional relationship indicated in the present application is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and is not indicative or implying that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and may be directly connected, or indirectly connected through an intermediate medium, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The disclosure of the present application provides many different embodiments or examples for implementing different structures of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described in the embodiments. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The protection of the present utility model is not limited to the above embodiments. Variations and advantages that would occur to one skilled in the art are included in the utility model without departing from the spirit and scope of the inventive concept, and the scope of the utility model is defined by the appended claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422492855.2U CN223640952U (en) | 2024-10-15 | 2024-10-15 | Disposable shading medical cornea protection lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422492855.2U CN223640952U (en) | 2024-10-15 | 2024-10-15 | Disposable shading medical cornea protection lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223640952U true CN223640952U (en) | 2025-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422492855.2U Active CN223640952U (en) | 2024-10-15 | 2024-10-15 | Disposable shading medical cornea protection lens |
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| Country | Link |
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| CN (1) | CN223640952U (en) |
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2024
- 2024-10-15 CN CN202422492855.2U patent/CN223640952U/en active Active
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