WO2024069377A1 - Boîtiers de lentilles de contact plats et procédés de manipulation - Google Patents

Boîtiers de lentilles de contact plats et procédés de manipulation Download PDF

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Publication number
WO2024069377A1
WO2024069377A1 PCT/IB2023/059481 IB2023059481W WO2024069377A1 WO 2024069377 A1 WO2024069377 A1 WO 2024069377A1 IB 2023059481 W IB2023059481 W IB 2023059481W WO 2024069377 A1 WO2024069377 A1 WO 2024069377A1
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WO
WIPO (PCT)
Prior art keywords
contact lens
base component
package
hinge
component
Prior art date
Application number
PCT/IB2023/059481
Other languages
English (en)
Inventor
Sam Jonathan POPWELL
Daniel Graham Ward
Stephen Sams
Ismail AKRAM
Original Assignee
Johnson & Johnson Vision Care, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson & Johnson Vision Care, Inc. filed Critical Johnson & Johnson Vision Care, Inc.
Publication of WO2024069377A1 publication Critical patent/WO2024069377A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C11/005—Contact lens cases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/54—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles of special shape not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/54—Containers, packaging elements or packages specially adapted for particular articles or materials for articles of special shape not otherwise provided for
    • B65D2585/545—Contact lenses

Definitions

  • the contact lens In a conventional contact lens package, the contact lens typically sits in a molded plastic base having a cavity (or "bowl") that houses the contact lens in a concave-side-up orientation.
  • a cavity or "bowl”
  • the user experience for transferring a contact lens from the package to an eye generally involves the user "fishing" the contact lens out of the bowl with a finger and then flipping the lens so that it is in the correct orientation on the finger for placement on the eye. This process requires touching the lens multiple times, which can transfer contaminants or pathogens from the hand to the lens and ultimately to the eye. Not only is this handling experience unsanitary, but it is also unduly cumbersome, messy, and mechanically stressful to the lens, which can tear, rip, or distort when overly manipulated.
  • wearers it would be desirable for wearers to be able to drain away any packaging solution which might impact the ability of adhering the lens to the finger or holder, as variation in the amount of packaging solution adhering to the lens and package can impact the process of placing the lens on the finger.
  • the wearer may be concerned about the potential of transferring bacteria or external products such as make up to the contact lens; and of course, manufacture of the package itself should conform to expected industry standards recognized by the medical and commercial provider communities.
  • a flat contact lens package has a base component including a hinge and a lid component sealedly coupled to the base component, wherein the base component and the lid component define a cavity configured to accommodate a contact lens and a packaging solution.
  • the package is configured such that upon opening the package by a wearer the packaging solution drains away from the contact lens.
  • a flat contact lens package includes a base component including a hinge and a lid component sealedly coupled to the base component.
  • the base component and the lid component define a cavity configured to accommodate a contact lens and a packaging solution. Additionally, in an unopened state, the base component is biased toward the lid component, while in an opened state, a portion of the base component is configured to pivot about the hinge and drain the packaging solution.
  • the flat contact lens package optionally has a planar shape in the unopened state.
  • the base component includes one or more sheets of material.
  • the one or more sheets of material include a foil.
  • the lid component includes one or more sheets of material.
  • the one or more sheets of material include a foil.
  • the portion of the base component is configured to pivot about the hinge in a direction away from the lid component in the opened state.
  • the portion of the base component is configured to pivot between 25 and 180 degrees about the hinge.
  • the hinge is optionally a living hinge.
  • the hinge divides the base component into a first region and a second region. Additionally, the hinge includes a thinned portion of the base component, where the thinned portion is arranged between the first region and the second region.
  • the hinge extends along a transverse axis of the base component.
  • the base component has a first edge, a second edge, a third edge, and a fourth edge, where the first and second edges extend substantially in parallel to one another, and where the third and fourth edges extend substantially in parallel to one another.
  • a length of the first and second edges is greater than a length of the third and fourth edges.
  • the transverse axis optionally extends substantially in parallel to the third and fourth edges.
  • the package optionally further includes a support component arranged in the cavity.
  • the support component is configured to support the contact lens in a convex-side- up orientation.
  • a method of applying a contact lens to a wearer's eye is described.
  • the contact lens is stored in a flat contact lens package including a base component including a hinge and a lid component sealedly coupled to the base component.
  • the base component and the lid component define a cavity configured to accommodate the contact lens and a packaging solution. Additionally, in an unopened state, the base component is biased toward the lid component.
  • the method includes separating the lid component and the base component; allowing a portion of the base component to pivot about the hinge; draining the packaging solution from the cavity; manipulating the contact lens with the wearer's finger; and applying the contact lens to the wearer's eye.
  • the method further includes manually pivoting the portion of the base component about the hinge.
  • the step of manipulating the contact lens with the wearer's finger is performed with a single touch.
  • FIG. 1 is a perspective view illustrating a flat contact lens package in an unopened state according to an example implementation described herein.
  • FIG. 2 is a cross section view illustrating the flat contact lens package of FIG. 1 along line A- A'.
  • FIG. 3A is a top view of the flat contact lens package of FIG. 1.
  • FIG. 3B is a bottom view of the flat contact lens package of FIG. 1.
  • FIGS. 4A-4C are perspective views illustrating a flat contact lens package in an opened state according to an example implementation described herein.
  • FIG. 4A is a view illustrating unsealing of a lid component from a base component of the package.
  • FIG. 4B is a view illustrating draining of packaging solution from the package.
  • FIG. 4C is a view illustrating the presentation of a contact lens in a convex-side-up orientation prior to insertion into a wearer's eye.
  • FIGS. 5A-5C are perspective views illustrating a flat contact lens package including a lens support structure in an opened state according to an example implementation described herein.
  • FIG. 5A is a view illustrating unsealing of a lid component from a base component of the package.
  • FIG. SB is a view illustrating draining of packaging solution from the package.
  • FIG. 5C is a view illustrating the presentation of a contact lens in a convex-side-up orientation prior to insertion into a wearer's eye.
  • FIGS. 6A-6C illustrates steps of handling a flat contact lens package according to an example implementation described herein.
  • FIG. 6A is a view illustrating the wearer unsealing a lid component from a base component of the package.
  • FIG. 6B is a view illustrating draining of packaging solution from the package.
  • FIG. 6C is a view illustrating the contact lens on the wearer's finger prior to insertion into the wearer's eye.
  • references to "one embodiment,” “an embodiment,” “some embodiments,” “an example embodiment,” etc. indicate that the embodiment described may include a particular feature, structure, aspect, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, aspect, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • a benefit of the certain embodiments the present invention is that they facilitate single-touch lens transfer from the package to a wearer's finger, and then from the finger to the wearer's eye without the lens inverting, falling off the finger or further manipulation.
  • Lens(es) or contact lens(es) refer to ophthalmic devices that reside on the eye. They have a generally hemispheric shape and can provide optical correction, cosmetic enhancement, UV blocking and visible light or glare reduction, therapeutic effect, including wound healing, delivery of drugs or neutraceuticals, diagnostic evaluation or monitoring, or any combination thereof.
  • the term lens includes soft hydrogel contact lenses, which are generally provided to the consumer in a package in the hydrated state, and have a relatively low moduli, which allows them to conform to the cornea.
  • Contact lenses suitable for use with the packages of the present invention include all hydrated contact lenses, including conventional and silicone hydrogel contact lenses.
  • a hydrogel is a hydrated crosslinked polymeric system that contains water in an equilibrium state, and may contain at least about 25%, or at least 35% water in the hydrated state. Hydrogels typically are oxygen permeable and biocompatible, making them excellent materials for producing contact lenses.
  • Conventional hydrogel contact lenses do not contain silicone containing components, and generally have higher water content, lower oxygen permeability, moduli, and shape memories than silicone hydrogels.
  • Conventional hydrogels are prepared from monomeric mixtures predominantly containing hydrophilic monomers, such as 2-hydroxyethyl methacrylate (“HEMA”), N-vinyl pyrrolidone (“NVP”) or polyvinyl alcohols.
  • HEMA 2-hydroxyethyl methacrylate
  • NDP N-vinyl pyrrolidone
  • United States Patents Nos. 4,495,313, 4,889,664 and 5,039,459 disclose the formation of conventional hydrogels.
  • Conventional hydrogels may be ionic or non-ionic and include polymacon, etafilcon, nelfilcon, ocufilcon lenefilcon and the like.
  • the oxygen permeability of these conventional hydrogel materials is typically below 20-30 barrers.
  • Silicon hydrogel formulations include balafilcon samfilcon, lotrafilcon A and B, delfilcon, galyfilcon, senofilcon A, B and C, narafilcon, comfilcon, formofilcon, riofilcon, fanfilcon, stenfilcon, somofilcon, kalifilcon and the like.
  • Silicone hydrogels refer to polymeric networks made from at least one hydrophilic component and at least one silicone-containing component. Silicone hydrogels may have moduli in the range of 60-200, 60-150 or 80 -130 psi, water contents in the range of 20 to 60%.
  • silicone hydrogels examples include acquafilcon, asmofilcon, balafilcon, comfilcon, delefilcon, enfilcon, fanfilcon, formofilcon, galyfilcon, lotrafilcon, narafilcon, riofilcon, samfilcon, senofilcon, somofilcon, and stenfilcon, verofilcon, including all of their variants, as well as silicone hydrogels as prepared in US Patent Nos.
  • Hydrogel lenses are viscoelastic materials. Contact lenses can form optical distortions if the lens interacts with either the package or any air bubble in the package. The extent of the optical distortions, and the length of time needed for the distortions to relax out will vary depending on the chemistry, and to a lesser extent, geometry of the lens. Conventional lens materials, such as poly hydroxyethyl methacrylate-based lenses like etafilcon A or polymacon have low loss modulus and tan delta compared to silicone hydrogels and may form fewer and less severe optical distortions as a result of contact with packaging.
  • silicones which generally increase the bulk elastic response
  • wetting agents such as PVP (which generally increase the viscous response)
  • coatings of conventional hydrogel materials which may lower the elastic response at the lens interface
  • Conventional hydrogel contact lenses and silicone hydrogel contact lenses having short or stiff crosslinking agents and or stiffening agent have short shape memories and may be less susceptible to deformation during storage.
  • high or higher shape memory hydrogels display optical distortions from contact with an air bubble or package of at least about 0.18 after 5 weeks of accelerated aging at 55°C. Viscoelastic properties, including loss modulus and tan delta, can be measured using a dynamic mechanical analysis.
  • the contact lenses can be of any geometry or power, and have a generally hemispherical shape, with a concave posterior side which rests against the eye when in use and a convex anterior side which faces away from the eye and is contacted by the eyelid during blinking.
  • the center or apex of the lens is the center of the lens optic zone.
  • the optic zone provides optical correction and may have a diameter between about 7mm and about 10mm.
  • the lens periphery or lens edge is the edge where the anterior and posterior sides meet.
  • the wetted lens is the contact lens and any residual packaging solution attached to it after packaging solution drainage.
  • Wetted contact is the aggregated contact area between the wetted lens and a lens support.
  • Embodiments may include a package providing a sealable cavity also interchangeably referred to as a reservoir.
  • the cavity may have any convenient form and may comprise a package bottom floor, a package ceiling, and walls, each of which are described in detail below.
  • the phrases “the lid component”, “a lid”, “the base component”, “a base component”, “the container” and “a container” encompass both the singular and plural.
  • the lid component and base component are sealed to each other to form a cavity which holds the contact lens and packaging solution in a sterile state during shipping and storage prior to use.
  • the contact lens package is made from materials which are compatible with the contact lens and solution, as well as retortable and biologically inert.
  • “Film” or “multilayer film” are films used to seal the package and are often referred to as lidstock.
  • Multilayer films used in conventional contact lens packages may be used in the packages of the present invention as a component of the base, a component of the lid, or both.
  • Multilayer films comprise a plurality of layers, including barrier layers, including foil layers, or coatings, seal layers, which seal the film to the rest of the package, and may also comprise additional layers selected from peel initiation layers, lamination layers, and layers that improve other package properties like stiffness, temperature resistance, printability, puncture resistance, barrier resistance to water or oxygen and the like.
  • the multilayer films form a steam sterilizable (retortable) seal.
  • the multilayer film can include PET, BON or OPP films layers to increase stiffness and temperature resistance, or to EVOH or PVDC coatings to improve barrier resistance to oxygen or moisture vapor.
  • An “unopened state” or “unopened” as used herein refers to a contact lens package that is closed and houses a contact lens in solution.
  • An “opened state” or “opened” as used herein refers to a contact lens package after the sterile seal has been broken. Depending on the context described herein, the open state extends to the state of the package when the user has manipulated the package to cause the lens to be lifted out of the packaging solution for transfer by the user.
  • a “wearer” or “user” as used herein refers to a person opening a contact lens package.
  • the user is generally referred to as the person who both opens the package and transfers the contact lens contained therein to their eye.
  • the user in some contexts may be a person handling the lens package on behalf of the wearer, such an eye care provider ("ECP") or another individual demonstrating for or assisting the wearer.
  • ECP eye care provider
  • Packaging solution is any physiologically compatible solution, which is compatible with the selected lens material and packaging.
  • Packaging solutions include buffered solutions having a physiological pH, such as buffered saline solutions.
  • the packaging solution may contain known components, including buffers, pH and tonicity adjusting agents, lubricants, wetting agents, nutraceuticals, pharmaceuticals, in package coating components and the like.
  • Certain aspects of the invention may serve to reduce or prevent significant optical damage to the contact lens due to interactions with air bubbles or the interior of the lens package that may arise during storage or transit due to gravitational or other forces, such as mechanical pressure being applied from outside of the package.
  • significant optical damage means a root-mean-squared (RMS) value equal or greater than about 0.08pm.
  • design of a single touch lens package faces distinct challenges.
  • Such challenges include, but are not limited to, the user being able to consistently position the contact lens to adhere to the user's finger, and then consistently releasing the contact lens from the user's finger onto the eye.
  • Consistency in taking the contact lens from an opened contact lens package onto the user's finger benefits from a mechanism for efficient draining of packaging solution from the contact lens within the package prior to manipulating the contact lens with the user's finger.
  • a flat contact lens package includes a base and a lid that is sealed against the base, where the base and the lid cooperate to define an interior space (i.e., a cavity) for accommodating a contact lens and a packaging solution.
  • the base is pivotable about a living hinge formed in the material of the base along a transverse direction of the base.
  • a sealed state i.e., unopened state
  • the base is biased to by the lid such that the package has a planar shape.
  • an unsealed state i.e., opened state
  • the base pivots about the living hinge to allow the packaging solution to drain from the lens.
  • FIGS. 1-3B a flat contact lens package 100 according to an example implementation is shown.
  • FIG. 1 illustrates the package 100 in an unopened state.
  • FIG. 2 illustrates the package in cross section along line A-A' in FIG. 1.
  • FIG. 3A illustrates a top side of the package 100, i.e., illustrating a lid component of the package 100.
  • FIG. 3B illustrates a bottom side of the package 100, i.e., illustrating a base component of the package 100.
  • the package 100 includes a base component 102 and a lid component 104.
  • the base component 102 includes one or more sheets of material.
  • the base component 102 may be a film or multilayer film as described herein.
  • the lid component 104 includes one or more sheets of material.
  • the lid component 104 may be a film or multilayer film as described herein.
  • the package 100 in the unopened state, has a planar shape. In other words, the unopened package 100 is relatively flat or level, i.e., in the form of a plane. This is in contrast to conventional contact lens packages having a blister bowl (i.e., a bowl-shaped cavity) that accommodates the contact lens and solution.
  • a blister bowl i.e., a bowl-shaped cavity
  • a flat contact lens package may reduce the amount of packaging solution as compared to conventional packages with a blister bowl.
  • This disclosure contemplates that the base component 102 and the lid component 104 are compatible with the contact lens and the packaging solution, as well as biologically inert.
  • the lid component 104 is sealedly coupled to the base component 102.
  • the lid component 104 and the base component 102 may be sealedly coupled using a heat seal, thermal bond, adhesive, or weld. It should be understood that heat seals, thermal bonds, adhesives, and welds are provided only as example techniques for sealedly coupling the lid component 104 and the base component 102.
  • the base component 102 and the lid component 104 define a cavity 108 configured to accommodate a contact lens 150 and a packaging solution 160.
  • the cavity 108 provides a sterile environment for the contact lens 150 and packaging solution 160.
  • the package 100 may reduce the amount of packaging solution 160, e.g., the volume of the cavity 108 may be smaller than the volume of a conventional blister bowl.
  • the base component 102 includes a hinge 106.
  • the hinge 106 allows for a portion of the base component 102 to bend or fold from 1 to 180 degrees about the hinge 106.
  • a portion of the base component 102 may bend or fold at least about 25 degrees about either side of the hinge 106. This facilitates draining of packaging solution 160 from the package 100 by creating at least about 3 mm separation between the edge of the lens and the foil.
  • a portion of the base component 102 may bend or fold at least about 25, 30, 40, 50, 60, 70, 80, 90, 100, 110, or 120 and preferably about 60 degrees about the hinge 106.
  • the hinge 106 divides the base component 102 into a first region 110 and a second region 112. Additionally, the hinge 106 includes a thinned portion 114 of the base component 102, where the thinned portion 114 is arranged between the first region 110 and the second region 112. In other words, the respective thickness of the base component 102 in the first and second regions 110, 112 is greater than the thickness of the thinned portion 114 of the base component 102.
  • the respective thickness of the base component 102 may be uniform or non-uniform across the first and second regions 110, 112. This disclosure also contemplates achieving the difference in material thicknesses during the manufacturing process.
  • the hinge 106 is designed (e.g., the thickness of the thinned portion described below relative to the thickness of the base component 102) to provide desired strength such that the package 100 does not tear.
  • the hinge 106 (e.g., the thinned portion 114 of the base component 102) may be formed using known processing techniques.
  • the hinge 106 may be formed using cold forming processes, where materials of the base component are shaped at or near ambient room temperature.
  • the hinge 106 may be formed using hot forming processes such as hot stamping or press hardening, where materials of the base component are shaped at elevated temperatures.
  • the hinge 106 may be formed using molding processes.
  • the hinge 106 may be formed using subtractive or additive manufacturing processes. Cold forming, hot forming, molding, and subtractive or additive manufacturing processes are known in the art and therefore not described in further detail herein. This disclosure contemplates using any process or processes that impart a hinge-like structure to the base component 102.
  • the hinge 106 is a living hinge.
  • a living hinge is a thinned piece of material surrounded by thicker material.
  • a living hinge allows for a portion of the base component 102 to bend or fold from 1 to 180 degrees about the hinge 106. As described above, the bending or folding creates tensile stress in the material of the living hinge. Accordingly, the thickness of the thinned piece of material of the living hinge is selected to provide desired strength such that the package 100 does not tear.
  • the base component 102 In the unopened state, as shown in FIGS. 1 and 2, the base component 102 is biased toward the lid component 104. As such, the package 100 has a planar shape as described above. Once the seal is broken, however, a portion of the base component 102 will naturally (i.e., without user manipulation) pivot, for example by spring action, about the hinge 106. Thus, in an opened state, at least a portion of the base component 102 pivots about the hinge 106 (see e.g., FIGS. 4B, 5B, and 6B). As a result, the packaging solution 160 drains from the package 100 (see e.g., FIGS. 4B, SB, and 6B). By efficiently draining of packaging solution 160 from the contact lens 150 within the package 100, the user is better able to manipulate the contact lens 150 with the user's finger (see e.g., FIG. 6C).
  • FIGS. 3A and 3B top side and bottom side views, respectively, of the package 100 are shown.
  • FIG. 3A illustrates the lid component 104.
  • FIG. 3B illustrates the base component 102.
  • the hinge 106 of the base component 102 extends along a first axis 180 of the base component 102.
  • the first axis 180 extends perpendicular to a second axis 182 of the base component 102.
  • the first axis 180 is referred to herein as the transverse axis of the package 100.
  • the second axis 182 is referred to herein as the long axis of the package 100.
  • the transverse axis extends in a crosswise direction to the long axis of the package 100, i.e., about perpendicular to the long axis of the package.
  • the hinge 106 extends along the transverse axis of the base component 102.
  • the transverse axis in FIG. 3B is shown located centrally (e.g., axis of symmetry of package) only as an example. This disclosure contemplates that the transverse axis may be offset toward an end of the package 100. Additionally, it should be understood that a hinge extending along the transverse axis of the package is provided only as an example.
  • the hinge 106 may extend along a different axis including, but not limited to, the long axis of the package 100 or an axis between the transverse and long axes of the package 100.
  • the hinge 106 must only extend along a sufficient portion of the base component 102 to facilitate draining of packaging solution.
  • the base component 102 has a first edge 116, a second edge 118, a third edge 120, and a fourth edge 122.
  • a length of the first and second edges 116, 118 is greater than a length of the third and fourth edges 120, 122.
  • This disclosure contemplates that respective lengths of the first and second edges 116, 118 can be the same or different, and that respective lengths of the third and fourth edges 120, 122 can be the same or different.
  • the first and second edges 116, 118 extend substantially in parallel to one another, and the third and fourth edges 120, 122 extend substantially in parallel to one another. In particular, as shown in FIG.
  • the first and second edges 116, 118 extend in parallel to the second axis 182 (i.e., the long axis of the package 100), and the third and fourth edges 120, 122 extend in parallel to the first axis 180 (i.e., the transverse axis of the package 100).
  • this disclosure contemplates that the hinge 106 may extend along a different axis including, but not limited to, an axis between the transverse and long axes of the package 100.
  • the package includes a base component 102 and a lid component 104.
  • the lid component 104 In an unopened state (not shown in FIGS. 4A-4C), the lid component 104 is sealedly coupled to the base component 102.
  • the base component 102 and the lid component 104 define a cavity configured to accommodate a contact lens 150 and a packaging solution 160.
  • the cavity provides a sterile environment for the contact lens 150 and packaging solution 160.
  • the base component 102 includes a hinge 106, which allows for a portion of the base component 102 to bend or fold about the hinge 106 as described above.
  • the package is opened by breaking the seal between the base component 102 and the lid component 104.
  • This exposes the contact lens 150 and the packaging solution 160 to the external environment.
  • FIG. 4B a portion of the base component 102 pivots about the hinge 106 because, in the opened state, the base component 102 is not biased toward the lid component 104. Instead, the base component 102 pivots about the hinge 106 in a direction away from the lid component 104, which is shown by arrow 170. This may occur automatically without any user manipulation upon breaking the seal between the base component 102 and the lid component 104.
  • manipulation by the user can increase the amount of pivot aboutthe hinge 106.
  • the portion of the base component 102 pivots about the hinge 106 between about 25 and 180 degrees as illustrated by angle 0 in FIGS. 4B and 4C.
  • the packaging solution 160 drains from the package as shown in FIG. 4B.
  • the contact lens 150 is supported on a surface of the hinge 106 as shown in FIGS. 4B and 4C.
  • the contact lens 150 is presented to the user in a convex-side-up orientation as shown in FIGS. 4B and 4C.
  • the user therefore is not required to fish out and/or flip over the contact lens 150 before applying it to the eye.
  • the packaging solution 160 has been drained from the package, the user is better able to manipulate the contact lens 150 with a finger. Such manipulation optionally only requires a single touch with the finger.
  • the package includes a base component 102 and a lid component 104.
  • the lid component 104 In an unopened state (not shown in FIGS. 5A-5C), the lid component 104 is sealedly coupled to the base component 102.
  • the base component 102 and the lid component 104 define a cavity configured to accommodate a contact lens 150 and a packaging solution 160.
  • the cavity provides a sterile environment for the contact lens 150 and packaging solution 160.
  • the base component 102 includes a hinge 106, which allows for a portion of the base component 102 to bend or fold about the hinge 106 as described above.
  • the package further includes a support component 124 arranged in the cavity.
  • the support component 124 may be an elongate rod, which is configured to interface with the concave surface of the contact lens 150.
  • the support component 124 may include a plurality of components, each being configured to interface with the concave surface of the contact lens 150.
  • the support component 124 is fixed to a surface of the hinge 106. In other aspects, the support component 124 is not fixed to a surface of the hinge 106. It should be understood that the size, shape, and arrangement of the support component 124 is provided only as an example. This disclosure contemplates a support component having a different size, shape, and/or arrangement.
  • the package is opened by breaking the seal between the base component 102 and the lid component 104.
  • This exposes the contact lens 150 and the packaging solution 160 to the external environment.
  • a portion of the base component 102 pivots about the hinge 106 because, in the opened state, the base component 102 is not biased toward the lid component 104. Instead, the base component 102 pivots about the hinge 106 in a direction away from the lid component 104, which is shown by arrow 170. This may occur automatically without any user manipulation upon breaking the seal between the base component 102 and the lid component 104.
  • manipulation by the user can increase the amount of pivot aboutthe hinge 106.
  • the portion of the base component 102 pivots about the hinge 106 between 1 and 180 degrees as illustrated by angle 0 in FIGS. 5B and 5C.
  • the packaging solution 160 drains from the package as shown in FIG. 5B.
  • the contact lens 150 is supported by the support component 124 and/or by a surface of the hinge 106 as shown in FIGS. 5B and 5C.
  • the support component 124 is configured to support the contact lens 150 in a convex-side-up orientation.
  • the contact lens 150 is presented to the user in a convex-side-up orientation as shown in FIGS. 5B and 5C.
  • the user therefore is not required to fish out and/or flip over the contact lens 150 before applying it to the eye.
  • the packaging solution 160 has been drained from the package, the user is better able to manipulate the contact lens 150 with a finger. Such manipulation optionally only requires a single touch with the finger.
  • FIGS. 6A-6C a method of handling a flat contact lens package is shown.
  • the user is handling a flat contact lens package as shown in any one of FIGS. 1-5C, for example.
  • a user to open the package (see e.g., package 100 in FIGS.1-3B), a user separates the lid component 104 and the base component 102.
  • a user may grip or pinch a portion of the lid component 104 using a thumb and finger of one hand and also grip or pinch a portion of the base component 102 using a thumb and finger of the other hand to open the package.
  • a portion of the base component 102 pivots about the hinge 106 because, in the opened state, the base component 102 is not biased toward the lid component 104. Instead, the base component 102 pivots about the hinge 106 in a direction away from the lid component 104. This may occur automatically without any user manipulation upon breaking the seal between the base component 102 and the lid component 104. In some aspects, such pivoting is aided by the user. As a result, the packaging solution 160 drains from the package, for example by gravity force. The contact lens 150 is presented to the user in a convex-side-up orientation. The user therefore is not required to fish out and/or flip over the contact lens 150 before applying it to the eye. And because the packaging solution 160 has been drained from the package, the user is better able to manipulate the contact lens 150 with a finger as shown in FIG. 6C. Such manipulation optionally only requires a single touch with the finger.
  • the wearer is the user, but the above-described embodiments also describe the situation in which the wearer is not the same person as the user, for example, in a medical or caretaker setting in which a caregiver applies a contact lens to the eye of a patient.
  • Example 1 A flat contact lens package comprising: a base component comprising a hinge; and a lid component sealedly coupled to the base component, wherein: the base component and the lid component define a cavity configured to accommodate a contact lens and a packaging solution, the base component is biased toward the lid component in an unopened state, and a portion of the base component is configured to pivot about the hinge and drain the packaging solution in an opened state.
  • Example 2. The flat contact lens package of example 1, wherein the flat contact lens package has a planar shape in the unopened state.
  • Example s The flat contact lens package of example 1 or 2, wherein the base component comprises one or more sheets of material.
  • Example 4 The flat contact lens package of example 3, wherein the one or more sheets of material include a foil.
  • Example 5 The flat contact lens package of example 1 or 2, wherein the lid component comprises one or more sheets of material.
  • Example 6 The flat contact lens package of example 5, wherein the one or more sheets of material include a foil.
  • Example ? The flat contact lens package of any one of examples 1-6, wherein the portion of the base component is configured to pivot about the hinge in a direction away from the lid component in the opened state.
  • Example 8 The flat contact lens package of example 7, wherein the portion of the base component is configured to pivot between 1 and 180 degrees about the hinge.
  • Example 9 The flat contact lens package of any one of examples 1-8, wherein the hinge is a living hinge.
  • Example 10 The flat contact lens package of any one of examples 1-8, wherein the hinge divides the base component into a first region and a second region.
  • Example 11 The flat contact lens package of example 10, wherein the hinge comprises a thinned portion of the base component, wherein the thinned portion is arranged between the first region and the second region.
  • Example 12 The flat contact lens package of any one of examples 1-11, wherein the hinge extends along a transverse axis of the base component.
  • Example 13 The flat contact lens package of example 12, wherein the base component has a first edge, a second edge, a third edge, and a fourth edge, wherein the first and second edges extend substantially in parallel to one another, and wherein the third and fourth edges extend substantially in parallel to one another.
  • Example 14 The flat contact lens package of example 13, wherein a length of the first and second edges is greater than a length of the third and fourth edges.
  • Example 15 The flat contact lens package of example 13 or 14, wherein the transverse axis extends substantially in parallel to the third and fourth edges.
  • Example 16 The flat contact lens package of any one of examples 1-15, further comprising a support component arranged in the cavity.
  • Example 17 The flat contact lens package of example 16, wherein the support component is configured to support the contact lens in a convex-side-up orientation.
  • Example 18 A method of applying a contact lens to a wearer's eye, the contact lens being stored in a flat contact lens package comprising a base component comprising a hinge and a lid component sealed ly coupled to the base component, wherein the base component and the lid component define a cavity configured to accommodate the contact lens and a packaging solution, and wherein the base component is biased toward the lid component in an unopened state, the method comprising: separating the lid component and the base component; allowing a portion of the base component to pivot about the hinge; draining the packaging solution from the cavity; manipulating the contact lens with the wearer's finger; and applying the contact lens to the wearer's eye.
  • Example 19 The method of example 18, further comprising manually pivoting the portion of the base component about the hinge.
  • Example 20 The method of example 18 or 19, wherein manipulating the contact lens with the wearer's finger is performed with a single touch.
  • the packages of the present invention may be manufactured using known materials and processes.
  • the packaging materials may be virgin, recycled or a combination thereof.
  • the volume within the package cavity can vary depending on the design selected.
  • the contact lens packages of the present invention incorporate several novel functionalities which may be combined in a wide variety of combinations as described herein to provide the desired improved packaging.
  • the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments but should be defined only in accordance with the following claims and their equivalents.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Abstract

Un boîtier de lentilles de contact plat (100) comprend un composant de base (102) comprenant une charnière (106) et un composant de couvercle (104) couplé de manière étanche au composant de base (102). Le composant de base (102) et le composant de couvercle (104) définissent une cavité conçue pour recevoir une lentille de contact (150) et une solution d'emballage (160). En outre, dans un état non ouvert, le composant de base (102) est sollicité vers le composant de couvercle (104), tandis que dans un état ouvert, une partie du composant de base est conçue pour pivoter autour de la charnière et drainer la solution de conditionnement.
PCT/IB2023/059481 2022-09-27 2023-09-26 Boîtiers de lentilles de contact plats et procédés de manipulation WO2024069377A1 (fr)

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US17/953,972 2022-09-27

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