A silicone hydrogel contact lens storage case

Abstract

The utility model discloses a kind of silica hydrogel contact lens storage boxes, including bearing frame, bearing frame is equipped with through containing passage;Containing layer, containing layer is the barrier sheet of plasticity deformation, containing layer heat-seals in the downside of bearing frame and is formed by plasticity deformation and recessed containing groove in the direction of departure containing passage, containing groove is used to contain silica hydrogel contact lens lens, and make lens and the inner surface between the bottom wall of containing groove form liquid film buffer gap;Sealing layer, sealing layer is barrier sheet and heat-seals in the upside of bearing frame, to form storage liquid seal cavity with containing layer together sealing containing passage. The utility model is through setting containing layer of barrier material layer, greatly reduce the contact between lens, and then effectively prevent lens from deforming due to adhesion, solve the deformation problem caused by easy adhesion in traditional PP box lens, improve the integrity and wearing comfort of lens.

Description

Technical Field

[0001] This utility model relates to a silicone hydrogel contact lens storage case. Background Technology

[0002] Most commercially available silicone hydrogel contact lens cases (hereinafter referred to as "PP cases") are made of polypropylene (PP) or polypropylene copolymer materials through integral injection molding, which has good chemical inertness and processing performance.

[0003] However, when storing silicone hydrogel lenses, the low surface energy of PP material causes the lenses to easily adhere to the PP material and lose moisture, resulting in adhesion and deformation. Therefore, there is an urgent need to address the problems of lens deformation, difficulty in retrieving the lenses, and decreased comfort when storing silicone hydrogel lenses.

[0004] Therefore, a silicone hydrogel contact lens storage case is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a silicone hydrogel contact lens storage case to solve the problem mentioned in the background art that lenses easily adhere to PP material and lose moisture, causing adhesion and deformation.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a silicone hydrogel contact lens storage case, a carrier frame, wherein the carrier frame is provided with a through receiving channel; The accommodating layer is a plastically deformable barrier sheet. The accommodating layer is heat-sealed to the lower side of the support frame and plastically deformed to form a recessed receiving groove opposite to the direction of the receiving channel. The receiving groove is used to accommodate a silicone hydrogel contact lens and to form a liquid film buffer gap between the lens and the inner surface of the bottom wall of the receiving groove. A sealing layer, which is a barrier sheet and heat-sealed to the upper side of the support frame, together with the accommodating layer, seals the accommodating channel to form a preservation liquid sealed cavity.

[0007] Preferably, the receiving groove is an annular arc-shaped protrusion, and the connection between its sidewall and bottom wall is an arc-shaped transition, so that the preservation liquid surrounds the lower surface and peripheral edge of the lens.

[0008] Preferably, the support frame is made of polypropylene, and the inner diameter of the accommodating channel is adapted to the maximum inner diameter of the annular arc-shaped protrusion.

[0009] Preferably, the outer periphery of the support frame is provided with a tear-off protrusion to provide a force fulcrum for peeling off the sealing layer.

[0010] Preferably, the barrier material is aluminum foil or an aluminum foil composite film.

[0011] Preferably, the capacity of the container for storing the preservation liquid is 0.3–3 mL.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a containment layer with a barrier material layer. The bottom wall of the containment groove forms a liquid film buffer gap with the lens. Compared to traditional polypropylene materials, the contact area between the lens and the polypropylene material is limited to the inner wall of the containment channel, significantly reducing contact with the lens and effectively preventing lens deformation due to adhesion. This solves the deformation problem caused by lens adhesion in traditional PP cases, improving lens integrity and wearing comfort. It can be used for packaging all hydrogel contact lenses, with a particularly significant target being the improvement of adhesion in silicone hydrogel lens products.

[0013] Meanwhile, the receiving groove is a ring-shaped arc protrusion, with a rounded transition at the connection between its sidewall and bottom wall, allowing the preservation solution to surround the lower surface and periphery of the lens. This ensures that the preservation solution can evenly surround the lens, preventing localized drying, improving the lens's wettability and moisture retention, extending the lens's lifespan, and reducing discomfort caused by lens drying.

[0014] Both the sealing layer and the containment layer are barrier sheets, which are heat-sealed with the support frame to form a sealed cavity for the preservation liquid. This significantly enhances the sealing performance of the preservation box, effectively preventing the evaporation of the preservation liquid and the entry of external contaminants, extending the product's shelf life, and reducing the risk of product spoilage due to poor sealing.

[0015] Furthermore, by optimizing the structural design and adopting barrier materials, not only were the product's structural strength and barrier performance improved, but the stamping / forming process was also optimized, increasing production yield and reducing costs. Simultaneously, user experience and environmental adaptability were enhanced. These improvements effectively resolved the engineering trade-offs present in existing technologies, achieving a better balance between performance, cost, and user experience, demonstrating significant innovation and practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structural dissection of an embodiment of the present utility model.

[0017] In the diagram: 1. Support frame; 11. Receiving channel; 12. Tear-open protrusion; 2. Receiving layer; 21. Receiving groove; 3. Sealing layer. Detailed Implementation

[0018] To address the problem of existing contact lenses easily adhering to PP material and deforming due to moisture loss, this invention provides a silicone hydrogel contact lens storage case. The technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0019] Please see Figure 1-3 This utility model provides a silicone hydrogel contact lens storage case, comprising: The support frame 1 has a through receiving channel 11; the support frame 1 is made of polypropylene, and the inner diameter of the receiving channel 11 is adapted to the maximum inner diameter of the annular arc-shaped protrusion. The outer periphery of the support frame 1 is provided with a tear-off protrusion 12, which is used to provide a force fulcrum for peeling off the sealing layer 3.

[0020] The accommodating layer 2 is a plastically deformable barrier sheet. It is heat-sealed to the lower side of the support frame 1 and plastically deformed to form a recessed receiving groove 21 facing away from the receiving channel 11. The receiving groove 21 is used to accommodate a silicone hydrogel contact lens, creating a liquid film buffer gap between the lens and the inner surface of the bottom wall of the receiving groove 21. The receiving groove 21 is an annular arc-shaped protrusion with a rounded transition at the junction of its sidewall and bottom wall, allowing the preservation solution to surround the lower surface and peripheral edge of the lens. The capacity of the receiving groove 21 for the preservation solution is 0.3–3 mL.

[0021] The sealing layer 3 is a barrier sheet that is heat-sealed onto the upper side of the support frame 1 to seal the accommodating channel 11 together with the accommodating layer 2 to form a preservation liquid sealing cavity.

[0022] The barrier material is aluminum foil or an aluminum foil composite film.

[0023] The working principle of the silicone hydrogel contact lens storage case provided by this utility model is as follows: Pinch the tear-off protrusion on the outer periphery of the carrier frame with your fingers and gently tear it upwards to peel the sealing layer off the carrier frame.

[0024] Gently shake the device to allow the lens to slide to the bottom of the receiving slot. Then carefully remove the lens from the receiving slot using clean fingers or tweezers.

[0025] The receiving groove is designed as a concave, annular, arc-shaped protrusion facing away from the receiving channel, with a rounded transition between its sidewalls and bottom wall. This allows the preservation solution to evenly surround the lens, forming a liquid film buffer gap. The liquid film buffer gap prevents lens adhesion and deformation, and also provides a protective film, making the lens safer during removal.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silicone hydrogel contact lens storage case, characterized in that, include: The support frame (1) is provided with a through receiving channel (11). The accommodating layer (2) is a plastically deformable barrier sheet. The accommodating layer (2) is heat-sealed to the lower side of the support frame (1) and plastically deformed to form a recessed receiving groove (21) in the direction opposite to the receiving channel (11). The receiving groove (21) is used to accommodate the silicone hydrogel contact lens and to form a liquid film buffer gap between the lens and the inner surface of the bottom wall of the receiving groove (21). The sealing layer (3) is a barrier sheet and is heat-sealed on the upper side of the support frame (1) to seal the accommodating channel (11) together with the accommodating layer (2) to form a preservation liquid sealing cavity.

2. The silicone hydrogel contact lens storage case according to claim 1, characterized in that: The receiving groove (21) is an annular arc protrusion, and the connection between its side wall and bottom wall is an arc transition, so that the preservation liquid surrounds the lower surface and peripheral edge of the lens.

3. A silicone hydrogel contact lens storage case according to claim 2, characterized in that: The support frame (1) is made of polypropylene, and the inner diameter of the accommodating channel (11) is adapted to the maximum inner diameter of the annular arc protrusion.

4. The silicone hydrogel contact lens storage case according to claim 1, characterized in that: The outer periphery of the support frame (1) is provided with a tear-off protrusion (12) to provide a force fulcrum for peeling off the sealing layer (3).

5. A silicone hydrogel contact lens storage case according to claim 1, characterized in that: The barrier sheet is aluminum foil or an aluminum foil composite film.

6. A silicone hydrogel contact lens storage case according to claim 1, characterized in that: The container (21) contains a storage solution with a capacity of 0.3–3 mL.

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