EP4147601B1 - Emballages de lentilles de contact et procédés de manipulation et de fabrication - Google Patents

Emballages de lentilles de contact et procédés de manipulation et de fabrication

Info

Publication number
EP4147601B1
EP4147601B1 EP22195203.9A EP22195203A EP4147601B1 EP 4147601 B1 EP4147601 B1 EP 4147601B1 EP 22195203 A EP22195203 A EP 22195203A EP 4147601 B1 EP4147601 B1 EP 4147601B1
Authority
EP
European Patent Office
Prior art keywords
lens
package
base
contact lens
cavity
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP22195203.9A
Other languages
German (de)
English (en)
Other versions
EP4147601C0 (fr
EP4147601A2 (fr
EP4147601A3 (fr
Inventor
Sam Jonathan POPWELL
Scott F. Ansell
Daniel Graham Ward
Stephen Sams
Brett SHORE
Ismail AKRAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson Vision Care Inc
Original Assignee
Johnson and 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 and Johnson Vision Care Inc filed Critical Johnson and Johnson Vision Care Inc
Priority to EP25189664.3A priority Critical patent/EP4706445A1/fr
Publication of EP4147601A2 publication Critical patent/EP4147601A2/fr
Publication of EP4147601A3 publication Critical patent/EP4147601A3/fr
Application granted granted Critical
Publication of EP4147601C0 publication Critical patent/EP4147601C0/fr
Publication of EP4147601B1 publication Critical patent/EP4147601B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/04—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, spherical or like small articles, e.g. tablets or pills
    • B65D83/049—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, spherical or like small articles, e.g. tablets or pills the dispensing means forming a part of a removable closure, e.g. gripping teeth or cavity
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/325—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil
    • B65D75/326—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil and forming one compartment
    • 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.
  • the single touch package ideally should not result in an inordinate increase in the cost of goods over current contact lens packages, as this could result in increased costs to the wearer community.
  • the package should not make it difficult to hold the lens when removed from the package. Additionally, if the configuration of the package were to maintain, or even reduce the volume of solution needed to package the lens, this would reduce the ecological impact of the lens package. Similarly, it would be beneficial if all or part of the package could be made of recycled materials, and/or recyclable in whole or part.
  • the package were composed of materials that are already approved by the various regulatory bodies and ideally did not require a change in solution chemistry or lens composition.
  • the functionality of the package preferably does not incorporate any electronics or other electrical components if such components could adversely affect performance of either the package or the lens.
  • the package ideally should protect the lens, i.e., it should ensure the lens's integrity (e.g., lens shape and optical integrity), while at the same time prevent crushing or damage to the lens; ii) the lens package should maintain the hydration of the lens when stored to maintain the lens's properties; and iii) the lens in its package preferably should be configured so that when desired, it is fully submerged in the packaging solution, yet be cleared of such solution when ready to be transferred from the packaging; iv) the package generally should have a retortable seal and contain both the lens and solution; v) the package preferably should maintain the lens in the desired convex orientation to the wearer; vi) the lens should be positioned so that it can be easily removed by the wearer; and vii) the package ideally should allow the packaging solution to be effectively drained
  • Known packages that have sought to provide reduce-touch or single touch orientations fail to provide one or more of the above-noted desired attributes for a single-touch package.
  • WO2014/195588 , WO2009/069265 , JP6339322 disclose packages which present the lens in a convex, bowl down configuration.
  • the lens support structures substantially match the shape of the contact lens, which provides undesirable contact area between the lens and lens support.
  • These references are also silent as to mechanisms for effective solution drainage from the lens and lens support.
  • US20200229560 discloses packages with lens supports that support the concave (anterior or front) surface of the contact lens, or grates that support the contact lens peripheral edge and allows packaging solution to drain through a grate to a bottom chamber upon opening the lens package.
  • US 2016/198825 discloses a contact lens package having a lever.
  • a contact lens package of the invention may house a contact lens and packaging solution wherein the package is configured to lift the contact lens out of the packaging solution when the package is squeezed by a user.
  • the contact lens package has a lid and a base that includes a cavity that houses a contact lens and packaging solution and a lever configured to hinge along a pivot line in the base when a force is applied to the lever.
  • the package includes a lens support that intersects the pivot line such that force applied to the lever causes the lens support to lift the contact lens out of the packaging solution in a position on the lens support capable of single-touch transfer by a user.
  • the lever is a discrete component that is coupled to the base by an attachment means.
  • the pivot line may be defined by at least one void in the base and may be imparted into the base by one or more of: a crease, a cut, a thinned line, and an etch or the like.
  • the base of the package may be composed of plastic and the lid may be a film. In some cases, the base and the lens support and/or the lever and lens support are a single unitary component.
  • a lens support may be coupled to the base by i) a laser weld; ii) heat; iii) an ultrasonic weld; iv) an adhesive, or the like.
  • the base may include one or more finger engagement features configured to aid a user in grasping the package or direct the application of force such that the lever hinges downward.
  • Possible figure engagement features includes a protrusion in the base at a distal end of the package and/or an overhang along at least a portion of the package's periphery.
  • a dimple sized to accommodate a finger or thumb of the user may be positioned at an end of the base proximal to the user.
  • Finger engagement features may be paired such that one is positioned at an end of the base proximal to the user and another is distal finger engagement feature positioned at an end of the base distal to the user. Alternatively, finger engagement features may be positioned at any other opposed side or end of the package.
  • 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 consistent 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. Consistent lens transfer includes a transfer rate of at least about 70%, at least about 80% or at least about 90% transfer on the first touch of the finger (or "dab"). The lens also desirably "sits up" on the finger without collapsing or inverting and then transfers to the eye when placed there.
  • Packages of certain embodiments may provide the desired single-touch transfer across a range of finger sizes, and dab pressures. Environmental conditions such as the temperature and whether the finger is wet or dry may also impact transfer rate, with higher temperatures generally improving lens transfer.
  • 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 polyhydroxyethyl 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 lens support.
  • Embodiments may include a lens support surrounded by a sealable cavity also interchangeably referred to as a chamber.
  • the cavity may have any convenient form and may comprise a package base and at least a lid, each of which are described in detail below.
  • the phrases “the lid”, “a lid”, “the base” and “a base” encompass both the singular and plural.
  • the lid and package base are sealed to each other to form a cavity which holds the contact lens, support 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 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.
  • the package base may form the bottom of the package. It can be made from any material suitable for packaging medical devices, including plastic.
  • the packaging lid generally resides at the upper portion the package and seals with the base to form a cavity containing at least a portion of the lens support, lens, and packaging solution.
  • the lid may be made from any material suitable for packaging medical devices, including a molded sheet of foil or plastic, laminate films, or plastic. Packages comprising plastic for one structure and foil or laminated films as the other, or packages comprising foil or laminated films as the outer layer for the lid and base are known in the art and are examples of suitable combinations.
  • contact lens 138 conveniently is presented to the wearer in a convex orientation, meaning that convex side of the lens 138 is accessible to the wearer without the need to reorient the lens before placing the concave side of the lens onto the wearer's eye surface. It will be appreciated however that other orientations, such as the concave orientation of traditional blister packages, are possible within the scope of invention. Transfer of the contact lens 138 from the lens support 140 may be performed by a wearer's finger 154, either directly touching the lens or indirectly by way of an applicator film (e.g., as described in US20190046353 ) or other covering applied to the finger, or may be performed by another transfer means, such as a manual or automatic applicator device or tool.
  • an applicator film e.g., as described in US20190046353
  • another transfer means such as a manual or automatic applicator device or tool.
  • the lens Upon transfer of the contact lens 138 from the package 100, the lens rests on the finger 154 (or other transfer means), as shown in step illustrated, with the convex side of contact lens 138 against the finger 154 and the concave side of the lens 138 oriented for direct application to the user's eye surface.
  • Lid insert 170 is attached to an inner surface of the lid 106 in this embodiment by a heat seal between the multilayer film lid 106 and the planar surfaces 172a-d on the upper side of the lid insert.
  • alignment of a lid insert with the base during the heat-sealing process and during storage may be aided by the inclusion of one or more alignment features in the base and/or lid insert.
  • alignment features 174 in the embodiment illustrated take the form of columns on the interior wall of cavity 136 of the base 110.
  • the alignment features 174 resist rotation and lateral motion of the lid insert 170 when pressure is applied to seal the package 100 or during normal use.
  • Alternative alignment features are possible such as but not limited to forming the cavity and lid insert (or integral portion of the lid comprising lens facing surfaces) in a non-circular shape such that the components interlock and resist rotation inherently.
  • FIG. 4 illustrated is a close-up view of a lid insert 170 when inserted in cavity 132 of base 110.
  • the position of alignment features (e.g., columns 174) on the wall of cavity 136 of the base 110 correspond to openings 178 in lid insert 170.
  • Columns 174 and openings 178 cooperate as an assembly to restrict rotational and lateral movement of the lid insert 170.
  • the lid insert may be configured to prevent the lens support from lifting (other than the expected time during opening) and to ensure that the lens is not compressed in the package due to external forces when sealing pressure is applied or during storage, transport, or when the user opens the package.
  • the lens supports of the present invention preferably allow, upon dabbing, both the fingertip and lens to deform to match each other's shape, without causing lens inversion or damage to lens during removal from too much pressure during dabbing.
  • an aspect of the removal of the lens from the present packages may be to control the ratio of the contact area between the finger and lens as compared to the area between the lens and the lens support so that the contact area between the finger and lens exceeds the contact surface area of the lens support on the lens underside. This will ensure that surface tension between finger and lens exceeds surface tension between lens and lens support. Thus, the lens will adhere to the finger for lens transfer and placement onto the eye.
  • Lens support 140 represents an example of a lens support that leverages a hybrid of back drainage and channel drainage to clear packaging solution from the lens sufficiently to enable single-touch transfer.
  • Lens support 140 includes a central support composed of three central support members 200a-c in a semi-circular configuration having a diameter of approximately 8mm. Central support members 200a-c are elevated 2.5 mm by pillars 204. Pillars 204 extend upward from channel members 204a and 204b, which transition along their length from proximal end (A) to distal end (B) to form a channel formation into a peripheral support 208. These members cooperate so that when the contact lens is lifted from the package, it rests upon lens support 240 in the preferred convex orientation (bowl down relative to the base of the package) at 7 contact points when the lens is lifted from the packaging solution.
  • lens support 140 creates central opening 212 to allow the packaging solution to back drain from the lens and lens support 140 when the package is opened and the lens support lifted from the packaging solution. This allows the apex of the lens to be supported by the lens's own elastic stiffness, and to minimize sinking of the lens apex while limiting the contact area between the support 140 and lens.
  • the design also provides sufficient support to edge of the contact less at points along the channel members 204a and 204b as well as along peripheral support 208. This configuration sufficiently reduces the wetted contact area between the lens support 140 and the contact lens to at least about 25 mm 2 when measured 2 seconds after lens support 140 is lifted.
  • Lens support 300 represents an example of a lens support that relies upon back drainage to clear packaging solution from the lens sufficiently to enable single-touch transfer.
  • Lens support 300 includes a central support 310 composed of four equally spaced radial spokes extending across a diameter of approximately 10.5 mm.
  • Central support members 310 is elevated 2.7 mm by pillars 314. Pillars 314 extend upward from support member 318, which includes a tab 324 by which the lens support 300 may be coupled to a base of a contact lens package in certain embodiments of the invention.
  • Peripheral support members 328 and 330 are formed in a continuous bow-tie configuration to provide support to the edges of a contact lens when the lens is lifted from the package and resting upon the support.
  • the central and peripheral support members of support 300 cooperate so that when the contact lens is lifted from the package, it rests upon lens support 300 in the preferred convex orientation (bowl down relative to the base of the package) at 5 contact points when the lens is lifted from the packaging solution.
  • lens support 300 includes sufficient open space between the spokes of central support 310 to allow the packaging solution to back drain from the lens and lens support 140 when the package is opened and the lens support lifted from the packaging solution. This allows the apex of the lens to be supported by the lens's own elastic stiffness, and to minimize sinking of the lens apex while limiting the contact area between the support 300 and lens.
  • the design also provides sufficient support to the edge of the contact lens at points along the peripheral support members 328 and 330. This configuration sufficiently reduces the wetted contact area between the lens support 300 and the contact lens to at least about 25mm 2 when measured 2 seconds after lens support 300 is lifted.
  • lens support embodiments illustrated and described herein are merely two among of myriad embodiments of a lens support within the scope of the invention as set forth in the appended claims. To be sure, a number of additional illustrative but non-limiting exemplary lens supports are depicted in Appendix A.
  • contact lens packages of the present invention may be configured to allow a nested configuration.
  • FIG. 9 illustrates two of contact lens package 100 shown as packages 100' and 100" in a nested configuration.
  • a nested configuration such as the one depicted in which the packages fit together securely within a smaller volume are useful for reducing the amount of secondary packaging (e.g., carton or other container in which the primary packages are provided to the consumer).
  • packages 100' and 100' are designed to nest when arranged base-to-base and inverted relative to each other from proximal end to distal end.
  • contact lens packages 100' and 100" nest is enabled by a combination of features including: a taper in the base 110' and 110" of each package and finger engagement features (dimples) 122a' and 122a" functioning as stops against lateral movement of the bases 110' and 110".
  • a first exemplary method of manufacture/assembly of the exemplary contact lens package 100 is illustrated as steps 1001A, 1002A, 1003A, 1004A, and 1005.
  • a contact lens 138 is placed onto lens support 140 in this embodiment with the contact lens being placed onto the lens support 140 with its concave side of the contact lens onto the lens support.
  • the lens support may be predosed with packaging solution sufficient to cause the contact lens to bind to the support.
  • the lens support may be inserted into the cavity first and the contact lens placed on the support thereafter.
  • lens support 140 with the contact lens 130 resting thereon is inserted into cavity 136 of a base 110.
  • lid insert 170 comprising lens facing surfaces 168 is placed onto the convex side of the contact lens 138.
  • the cavity is dosed with packaging solution sufficiently to fully submerge contact lens 138 in the cavity and ideally as full as possible without overflowing the cavity.
  • at least one of the fitment and/or a surface feature of the lid insert against the base cavity creates a friction fit so that the lid insert does not float out of position when the packing solution is added to the cavity.
  • the lid 106 is sealed onto the base 110, for example by heat sealing the foil to the base as described in more detail above, such that the sealing encloses the contact lens 138 and packaging solution within the cavity 136 in a sterile environment.
  • a package base 110 is provided wherein a cavity 136 of the base 110 has lens support 140 coupled thereto.
  • lens support 140 is coupled to the base by a heat staking process as described in more detail above.
  • other means of attachment including e.g., laser welding, ultrasonic welding, adhesion, mechanical clipping, and the like.
  • a contact lens 138 is placed onto a lens facing surface of a lid insert 170, in this embodiment with the lens's convex surface resting against the lens facing surfaces 168 of lid insert 170.
  • the lens 138 may be placed onto the lid insert by manual or automated means such as through a lens transfer nozzle.
  • the lid insert 170 having the contact lens 138 resting thereon is placed onto the lens support 140 in the cavity 136 of the base 110.
  • the cavity 136 is dosed with packaging solution sufficiently to fully submerge the contact lens 138 in the 136 cavity and ideally as full as possible without overflowing the cavity.
  • the lid 106 is sealed onto the base 110, for example by heat sealing the foil to the base as described in more detail above, such that the sealing encloses the contact lens 138 and packaging solution within the cavity 136 in a sterile environment.
  • the provision of packaging solution to the cavity may take place in multiple doses at different steps of the assembly process as opposed to all at once as described in the exemplary methods above.
  • the lens is placed upon the lens support (e.g., step 1001A above) it may be advantageous to pre-dose a small amount of packaging solution onto lens support before resting the lens thereon so that the lens becomes secured to the lens under the surface tension of the solution.
  • Dividing the dosing of packaging solution may also be advantageous when filling the cavity, such as, for example, by dividing a dose of approximately 2080 ⁇ L into two approximately equal sized doses for example at steps (1001B and 1004B) described above.
  • 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 and/or single touch 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Eyeglasses (AREA)
  • Packaging Frangible Articles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Packages (AREA)

Claims (12)

  1. Conditionnement de lentilles de contact (100) comprenant :
    un couvercle (106) ;
    une base (110) comprenant :
    une cavité (136) conçue de façon à loger une lentille de contact (138) et une solution de conditionnement, la lentille de contact ayant un côté postérieur concave qui est conçu de façon à s'appuyer sur l'œil en cours d'utilisation et un côté antérieur convexe qui est conçu de façon à s'éloigner de l'œil en cours d'utilisation, dans lequel la cavité est conçue de façon à loger la lentille de contact dans une position convexe dans lequel le côté antérieur convexe est orienté vers le couvercle ; et
    un levier (118) conçu de façon à s'articuler le long d'une ligne de pivot (114) dans la base lorsqu'une force est appliquée au levier ; et
    un support de lentille (140) croisant la ligne de pivot de telle sorte que la force appliquée au levier est conçue de façon à amener le support de lentille à soulever la lentille de contact hors de la solution de conditionnement dans une position sur le support de lentille susceptible d'être transférée d'un seul geste par un utilisateur.
  2. Conditionnement de lentilles de contact selon la revendication 1, dans lequel le levier est un composant distinct qui est accouplé à la base par un moyen d'attachement, et/ou
    dans lequel la ligne de pivot est définie par au moins un vide (158) dans la base, et/ou
    dans lequel la ligne de pivot est introduite dans la base par un ou plusieurs parmi : un plissement, une entaille, une ligne amincie, et une gravure.
  3. Conditionnement de lentilles de contact selon l'une quelconque des revendications 1 ou 2, dans lequel la base est composée d'un matériau relativement rigide, et/ou
    dans lequel le couvercle comprend un film et la base comprend une matière plastique.
  4. Conditionnement de lentilles de contact selon l'une quelconque des revendications 1, 2 ou 3, dans lequel la base et le support de lentille sont un composant unique d'un seul tenant, et/ou
    dans lequel le levier et le support de lentille sont un composant unique d'un seul tenant, et/ou
    dans lequel le support de lentille est accouplé à la base par au moins l'un parmi : i) une soudure au laser ; ii) de la chaleur ; iii) une soudure par ultrasons ; et iv) un adhésif.
  5. Conditionnement de lentilles de contact selon l'une quelconque revendication précédente, dans lequel la base comprend au moins une caractéristique de mise en prise de doigt (122a à c) conçue de façon à i) aider un utilisateur à saisir le conditionnement ou i) diriger l'application de force de telle sorte que le levier s'articule vers le bas, et éventuellement :
    dans lequel l'au moins une caractéristique de mise en prise de doigt comprend une partie saillante (122c) dans la base au niveau d'une extrémité distale du conditionnement, et/ou
    dans lequel l'au moins une caractéristique de mise en prise de doigt comprend un dépassement (122b) le long d'au moins une partie de la périphérie du conditionnement, et/ou
    dans lequel l'au moins une caractéristique de mise en prise de doigt comprend un creux (122a) dimensionné de façon à accueillir un doigt ou un pouce de l'utilisateur, dans lequel le creux est positionné au niveau d'une extrémité de la base proximale à l'utilisateur, et/ou
    dans lequel l'au moins une caractéristique de mise en prise de doigt comprend une caractéristique de mise en prise de doigt proximale positionnée au niveau d'une extrémité de la base proximale à l'utilisateur et une caractéristique de mise en prise de doigt distale positionnée au niveau d'une extrémité de la base distale à l'utilisateur.
  6. Conditionnement de lentilles de contact selon l'une quelconque revendication précédente, dans lequel le couvercle comprend une surface faisant face vers la lentille (168) qui s'étend vers le bas dans la cavité au-dessus de la lentille de contact lorsque le conditionnement est dans un état non ouvert, et éventuellement
    dans lequel la surface faisant face vers la lentille et le support de lentille sont conçus au sein de la cavité de telle sorte que la zone optique de la lentille de contact est suspendue dans la solution de conditionnement entre la surface faisant face vers la lentille et le support de lentille lorsque le conditionnement est dans un état non ouvert.
  7. Conditionnement de lentilles de contact selon l'une quelconque revendication précédente,
    dans lequel le support de lentille a un profil qui ne correspond pas sensiblement au profil de la lentille de contact, et/ou
    dans lequel lorsque le conditionnement est dans un état ouvert l'espace de contact mouillé entre le support de lentille et la lentille de contact est inférieur à environ 30 mm2, inférieure à environ 25 mm2, ou inférieure à environ 20 mm2.
  8. Conditionnement de lentilles de contact selon l'une quelconque revendication précédente, comprenant au moins une surface faisant face vers la lentille dans la cavité au-dessus d'un côté convexe de la lentille de contact, dans lequel, lorsque le conditionnement est dans un état non ouvert l'au moins une surface faisant face vers la lentille est conçue de façon à aligner la lentille de contact sur le support de lentille ; ou protéger la lentille de contact contre des dommages optiques importants du fait de forces gravitationnelles, mécaniques ou induites par l'air et éventuellement
    dans lequel l'au moins une surface faisant face vers la lentille est fournie sur un insert de couvercle (170), dans lequel l'insert de couvercle est attaché à une surface interne du couvercle, et en outre éventuellement :
    dans lequel l'insert de couvercle comporte au moins une caractéristique d'alignement et/ou
    dans lequel l'insert de couvercle comporte au moins une caractéristique de verrouillage.
  9. Procédé de fabrication d'un conditionnement (100) contenant une lentille de contact (138) dans une solution de conditionnement, le procédé comprenant :
    le placement d'un côté concave de la lentille de contact sur un support de lentille (140) ;
    l'insertion du support de lentille (140) dans une cavité (136) d'une base (110) du conditionnement ;
    le placement d'un insert (170) comprenant une surface faisant face vers la lentille (168) sur la lentille de contact ;
    le dosage de la cavité avec une solution de conditionnement ; et
    le scellement du couvercle (106) sur la base, dans lequel le scellement enferme la lentille de contact et la solution de conditionnement au sein de la cavité dans un environnement stérile.
  10. Procédé selon la revendication 9, dans lequel le placement de la lentille de contact sur le support de lentille a lieu après l'étape consistant à insérer le support de lentille dans la cavité de la base, et/ou
    comprenant en outre une étape de dosage du support de lentille avec une solution de conditionnement avant de placer la lentille de contact sur le support de lentille.
  11. Procédé de fabrication d'un conditionnement (100) contenant une lentille de contact (138) dans une solution de conditionnement, le procédé comprenant :
    la fourniture d'une base d'emballage (110) comprenant une cavité (136) ayant un support de lentille (140) accouplé à celle-ci ;
    le placement d'un côté convexe de la lentille de contact sur une surface faisant face vers la lentille (168) d'un insert de couvercle (170) ;
    l'insertion de la surface faisant face vers la lentille ayant la lentille de contact s'appuyant sur celle-ci sur le support de lentille dans la cavité de la base ;
    le dosage de la cavité avec une solution de conditionnement ; et
    le scellement du couvercle (106) sur la base, dans lequel le scellement enferme la lentille de contact et la solution de conditionnement au sein de la cavité dans un environnement stérile.
  12. Procédé selon les revendications 9 à 11, comprenant en outre l'alignement de l'insert de couvercle au sein de la cavité de la base, dans lequel l'alignement comprend la translation de l'insert de couvercle sur une caractéristique d'alignement dans la cavité de la base, et/ou
    comprenant en outre le verrouillage de l'insert de couvercle au sein de la cavité de la base, dans lequel le verrouillage comprend l'application d'une pression sur l'insert de couvercle suffisante pour amener une partie saillante sur un côté de l'insert de couvercle à se fixer à une paroi latérale de la cavité par friction.
EP22195203.9A 2021-09-13 2022-09-12 Emballages de lentilles de contact et procédés de manipulation et de fabrication Active EP4147601B1 (fr)

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JP (1) JP2023041650A (fr)
KR (1) KR20230039573A (fr)
CN (1) CN115806121A (fr)
AU (1) AU2022231664A1 (fr)
CA (1) CA3173598A1 (fr)
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US20230083028A1 (en) 2023-03-16
EP4147601C0 (fr) 2025-07-16
EP4706445A1 (fr) 2026-03-11
EP4147601A2 (fr) 2023-03-15
US20250250099A1 (en) 2025-08-07
HUE073003T2 (hu) 2025-12-28
TW202337344A (zh) 2023-10-01
CN115806121A (zh) 2023-03-17
EP4147601A3 (fr) 2023-06-21
JP2023041650A (ja) 2023-03-24
KR20230039573A (ko) 2023-03-21
AU2022231664A1 (en) 2023-03-30
CA3173598A1 (fr) 2023-03-13

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