TWM669846U - Gas permeable contact lenses - Google Patents

Abstract

An oxygen permeable contact lens comprises a contact lens having an outer lens surface in a convex arc shape and an inner lens surface in a concave arc shape located on the opposite side of the outer lens surface. The contact lens is provided with at least one oxygen permeable hole through which a laser straight line penetrates the outer lens surface and the inner lens surface. The oxygen permeable hole is used to increase the air permeability and oxygen permeability of the contact lens, so that when the contact lens is worn, the eyeball can Oxygen is supplied through the oxygen permeable holes in a timely manner, and the circulation of tears and water is increased, which greatly reduces discomfort symptoms such as dry eyes, stinging or foreign body sensation, further improves the comfort of wearing, and effectively reduces the risk of eye infection, ensuring the safety of wearing. In addition, the use of eye drops or artificial tears can also achieve the moisturizing effect of the eyeball through the oxygen permeable holes, and has the convenience of eyeball soothing.

Description

Oxygen permeable contact lenses

This creation is about a contact lens, in particular, an oxygen permeable contact lens with millimeter-diameter oxygen permeable holes perforated by laser.

Existing contact lenses are prone to problems such as poor air permeability, poor oxygen permeability, and lack of hydrophilicity. Not only will it affect the self-lubricating mechanism of the eyes, causing discomfort such as dry eyes, burning sensations, and fatigue, but the cornea has no blood vessels to supply oxygen and mainly relies on oxygen in the air to maintain health. If the contact lenses worn have poor oxygen permeability, the contact lenses will prevent oxygen from reaching the eyes, increasing the risk of bacterial keratitis in the eyeball. In severe cases, it can cause corneal hypoxia, leading to problems such as red eyes, blurred vision, and even corneal damage.

In view of this, the creator has been engaged in the manufacturing, development and design of related products for many years. Aiming at the above goals, after careful design and careful evaluation, he finally obtained this creation which is truly practical.

The technical problem that this invention aims to solve is to provide an oxygen permeable contact lens for the above-mentioned deficiencies of the existing technology, including a contact lens having an outer lens surface in a convex arc shape and an inner lens surface in a concave arc shape located on the opposite side of the outer lens surface. The contact lens is provided with at least one oxygen permeable hole by a laser straight line penetrating the outer lens surface and the inner lens surface, thereby increasing the air permeability and oxygen permeability of the contact lens by using the oxygen permeable hole, thereby improving the comfort of wearing the contact lens.

Preferably, the diameter of the oxygen permeable hole is between 0.1 mm and 0.01 mm.

Preferably, the contact lens is provided with a plurality of the oxygen permeable holes penetrating the outer lens surface and the inner lens surface.

Preferably, the contact lens comprises an optical area, a non-optical area and an outer edge, and the plurality of oxygen permeable holes are formed at least in the non-optical area.

Preferably, the plurality of oxygen permeable holes are formed equidistantly in the optical area and the non-optical area.

Compared with the effects of previous technologies: the contact lenses of this invention use laser straight lines to penetrate the outer lens surface and the inner lens surface to form at least one oxygen permeable hole, so that the contact lenses can instantly complete the forming operation of the oxygen permeable hole, avoiding multiple layers and multiple processing, which helps to improve the product yield, and make the diameter of the oxygen permeable hole extremely small and the cutting edge smooth, so that the oxygen permeable hole feels very small and will not cause invasive discomfort to the eyeball, providing users with the convenience of wearing it by themselves, thereby enhancing the industrial utilization of the product.

In addition, the oxygen permeable holes that pass through the outer and inner lens surfaces can greatly improve the oxygen permeability of the contact lens, so that the eyeball can obtain oxygen through the oxygen permeable holes in a timely manner, and increase the circulation of tears and water, greatly reducing discomfort symptoms such as dry eyes, stinging or foreign body sensation, further improving the comfort of wearing, and effectively reducing the risk of eye infection, ensuring the safety of wearing. In addition, the use of eye drops or artificial tears can also achieve the moisturizing effect of the eyeball through the oxygen permeable holes, and have the convenience of eyeball soothing.

10: Contact lenses

101: Optical District

102: Non-optical area

103:Outer edge

11: External mirror

12: Inner mirror

13: Oxygen permeable hole

20: Upper mold

201: First bowl

202:convex arc surface

21: Lower mold

211: Second bowl

212: concave arc surface

22: Forming chamber

30:Polymer materials

40:Laser equipment

[Figure 1] is a three-dimensional image of this work.

[Figure 2] is a partially enlarged cross-sectional view of the plan view of this work.

[Figure 3] is the process flow chart of this creation.

[Figure 4] is a schematic diagram of the laser hole drilling process of this creation.

[Figure 5] is a schematic diagram of another embodiment of this creation.

[Figure 6] is a diagram showing the wearing and ventilation of this creation.

[Figure 7] is a diagram showing the use of eye drops or artificial tears in this creation.

In order to enable the review committee to have a deeper understanding and knowledge of the purpose, features and effects of this creation, please follow the [Simple Diagram Description] for details:

First, please refer to Figures 1 and 2. A type of oxygen permeable contact lens includes a contact lens 10. The contact lens 10 has an outer lens surface 11 in a convex arc shape, and an inner lens surface 12 in a concave arc shape located on the opposite side of the outer lens surface 11. The contact lens 10 is provided with at least one oxygen permeable hole 13 by a laser straight line penetrating the outer lens surface 11 and the inner lens surface 12. The aperture size of the oxygen permeable hole 13 is between 0.1 mm and 0.01 mm, so as to increase the air permeability and oxygen permeability of the contact lens 10 by using the oxygen permeable hole 13, thereby improving the comfort of wearing the contact lens.

To further explain, as shown in FIGS. 3 and 4, the contact lens 10 is formed by combining an upper mold 20 and a lower mold 21 for curing. The upper mold 20 has a first bowl portion 201, and the outer wall of the first bowl portion 201 forms a convex arc surface 202. The lower mold 21 has a second bowl portion 211, and the inner wall of the second bowl portion 211 forms a concave arc surface 212. When the upper mold 20 and the lower mold 21 are combined, a forming chamber 22 can be formed between the first bowl portion 201 and the second bowl portion 211. A polymer material 30 is then injected into the forming chamber 22, and then the polymer material 30 in the forming chamber is cured by heating or light. After the forming and curing, the film can be removed. The contact lens 10 is taken out. The contact lens 10 includes an optical area 101, a non-optical area 102 and an outer edge 103. Then, the contact lens 10 is perforated by a laser device 40. The laser is used to penetrate the outer and inner mirror surfaces 11 and 12 of the contact lens 10 to form at least one oxygen permeable hole 13. As shown in FIG. 1, in this embodiment, a plurality of oxygen permeable holes 13 are provided through the outer and inner mirror surfaces 11 and 12 of the contact lens 10, wherein the oxygen permeable holes 13 are formed at least in the non-optical area 102. In addition, as shown in FIG. 5, the oxygen permeable holes 13 can also be formed equidistantly in the optical area 101 and the non-optical area 102.

The structure of the above-mentioned specific embodiment can achieve the following benefits: the contact lens 10 of the invention uses a laser straight line to penetrate the outer lens surface 11 and the inner lens surface 12 to form at least one oxygen permeable hole 13, so that the contact lens 10 can instantly complete the forming operation of the oxygen permeable hole 13, avoiding multiple layers and multiple processing, which helps to improve the product yield, and makes the aperture of the oxygen permeable hole 13 extremely small and the cutting edge smooth, so that the oxygen permeable hole 13 feels very little and will not cause invasive discomfort to the eyeball, providing the convenience of users to wear it by themselves, thereby improving the industrial utilization of the product.

In addition, the oxygen permeable hole 13 that passes through the outer and inner lens surfaces 11 and 12 in a straight line can greatly improve the oxygen permeability of the contact lens 10, so that the eyeball can obtain oxygen through the oxygen permeable hole 13 in a timely manner (as shown in Figure 6), and increase the circulation effect of tears and water, greatly reducing discomfort symptoms such as dry eyes, stinging or foreign body sensation, further improving the comfort of wearing, and effectively reducing the risk of eye infection, ensuring the safety of wearing. In addition, the use of eye drops or artificial tears can also achieve the moisturizing effect of the eyeball through the oxygen permeable hole 13 (as shown in Figure 7), and has the convenience of eyeball soothing.

In summary, this creation has indeed achieved a breakthrough structural design, and has improved new content, while also being able to achieve industrial applicability and progress. Moreover, this creation has not been seen in any publication and is also novel, and should comply with the relevant provisions of the Patent Law. Therefore, a new patent application is filed in accordance with the law, and the Jun Bureau Review Committee is requested to grant legal patent rights, and I am very grateful.

However, the above is only a preferred embodiment of this invention, and it cannot be used to limit the scope of implementation of this invention; that is, all equivalent changes and modifications made according to the scope of this new patent application should still fall within the scope of this new patent.

10: Contact lenses

101: Optical District

102: Non-optical area

103:Outer edge

11: External mirror

12: Inner mirror

13: Oxygen permeable hole

Claims (5)

An oxygen permeable contact lens comprises a contact lens having an outer lens surface in a convex arc shape and an inner lens surface in a concave arc shape located on the opposite side of the outer lens surface. The contact lens is provided with at least one oxygen permeable hole by a laser straight line penetrating the outer lens surface and the inner lens surface, thereby increasing the air permeability and oxygen permeability of the contact lens by using the oxygen permeable hole, thereby improving the comfort of wearing the contact lens. The oxygen permeable contact lens as described in claim 1, wherein the diameter of the oxygen permeable hole is in the range of 0.1 mm to 0.01 mm. The oxygen permeable contact lens as described in claim 1, wherein the contact lens is provided with a plurality of oxygen permeable holes penetrating the outer lens surface and the inner lens surface. The oxygen permeable contact lens as described in claim 3, wherein the contact lens comprises an optical area, a non-optical area and an outer edge, and the plurality of oxygen permeable holes are formed at least in the non-optical area. The oxygen permeable contact lens as described in claim 4, wherein the plurality of oxygen permeable holes are formed equidistantly in the optical zone and the non-optical zone.

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