WO2012111038A1 - コンタクトレンズケース - Google Patents
コンタクトレンズケース Download PDFInfo
- Publication number
- WO2012111038A1 WO2012111038A1 PCT/JP2011/000816 JP2011000816W WO2012111038A1 WO 2012111038 A1 WO2012111038 A1 WO 2012111038A1 JP 2011000816 W JP2011000816 W JP 2011000816W WO 2012111038 A1 WO2012111038 A1 WO 2012111038A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens
- contact lens
- catalyst
- contact
- mounting surface
- 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.)
- Ceased
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L12/00—Methods or apparatus for disinfecting or sterilising contact lenses; Accessories therefor
- A61L12/08—Methods or apparatus for disinfecting or sterilising contact lenses; Accessories therefor using chemical substances
- A61L12/086—Container, accessories or devices therefor
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- 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 present invention relates to a contact lens case in which a soft contact lens is immersed and stored in a sterilizing preservation solution.
- boiling disinfection is known as a kind of contact lens sterilization treatment, but in the case of a soft contact lens, deterioration of the lens itself or thermal transformation of the attached matter may become a problem. Furthermore, since a special apparatus is required for the boiling disinfection process and the operation is troublesome, a non-heating type disinfecting method is employed for the bactericidal treatment of the soft contact lens instead of the boil disinfection.
- Such non-heating type disinfection methods generally include an MPS method in which a contact lens is stored in a solution of a disinfectant such as polydronium chloride, and a hydrogen peroxide method in which the contact lens is neutralized by immersing the contact lens in a hydrogen peroxide solution. It has been known. For example, as described in JPO standard technology collection “Glasses”, pages 320 and 323 (Non-patent Document 1).
- An object of the present invention is to provide a contact lens case having a novel structure capable of realizing an effective sterilization treatment for a contact lens.
- a contact lens case in which a lens storage portion for storing a contact lens by immersing the contact lens in a sterilizing storage solution opened upward is provided below the surface of the storage solution.
- a lens mounting surface that protrudes from the bottom of the lens housing portion and has a spherical shape that is convex upward and is held in a mounted state by overlapping the spherical concave surfaces of the contact lens.
- the lens mounting surface is made of an antibacterial material, and the geometric center of the contact lens mounted on the lens mounting surface is deviated from the apex of the lens mounting surface.
- the contact lens case is provided with an inclined mounting means for positioning.
- the contact lens is immersed in a storage solution in a state where the spherical concave surface of the contact lens is directly placed on the lens placement surface formed of the antibacterial material. It is accommodated in the accommodating part. Therefore, in such an accommodation state, in addition to the sterilizing action of the preserving liquid, the sterilizing action of the lens case by the antibacterial material also acts on the spherical concave surface of the contact lens.
- the preservation solution is an MPS solution
- the weak sterilization effect in the MPS solution is effectively supplemented by the sterilization effect of the lens case itself, and the collaborative sterilization effect of both the solution and the lens case It is possible to give an excellent sterilizing effect to the contact lens.
- the spherical convex surface is exposed to tears that are actively flowed by blinking or gravity action, so that adverse effects due to the adhesion of microorganisms can be suppressed, while the spherical concave surface Is in close contact with the cornea and the exchange of tears is also limited, so there is a concern that the adverse effect of the adhesion of microorganisms is great.
- the sterilization action by the lens case can be positively exerted on the spherical concave surface of the contact lens, and the adverse effect caused by the adhesion of microorganisms can be avoided more efficiently.
- the contact lens is placed in an inclined state by setting the geometric center of the contact lens at a position deviating from the apex of the lens placement surface, and the lens edge (contact lens The outer peripheral edge) is positioned at the lowermost position opposite to the diametrical direction and at the other end as the uppermost position.
- the contact lens is housed in a very narrow area with the concave cap inner surface in addition to the lens mounting surface protruding above the liquid surface.
- the lens mounting surface has a large number of through-holes for contacting the storage solution with the contact lens. The entire spherical concave surface of the lens cannot be mounted on the lens mounting surface, and it is difficult to ensure a sufficient contact area and antibacterial action.
- the spherical concave surface of the contact lens is mounted and the lens geometric center is set to the lens mounting surface by the convex spherical lens mounting surface provided below the liquid surface of the lens housing portion.
- the spherical concave surface of the contact lens is placed on the lens placement surface provided in a state of protruding toward the opening of the lens housing portion. Therefore, regardless of the MPS method or the hydrogen peroxide method described above, when the lens user takes out the contact lens after the sterilization treatment, the spherical convex surface of the contact lens is removed with the fingers. It is possible to wear the contact lens on the cornea as it is, picking it up. This makes it possible to remove the contact lens from the lens housing and wear it on the cornea without touching the spherical concave surface of the contact lens, which is likely to be particularly problematic when worn due to bacterial contamination. The bactericidal effect on the concave surface can be more effectively exhibited in the wearing state.
- the contact lens case according to the first aspect wherein the inclined mounting means extends from the apex of the lens mounting surface to the opposite side to the direction in which the geometric center of the contact lens is removed.
- the radius of curvature of the lens mounting surface is made smaller than the radius of curvature of the inner surface of the contact lens, thereby creating a gap between the lens mounting surface and the inner surface of the outer peripheral edge of the contact lens. It is intended to be squeezed.
- a gap is positively formed between the inner surface of the contact lens and the lens mounting surface on the uppermost side of the lens edge from which bubbles that have entered the lower side of the contact lens escape. , Bubbles are more easily removed from the lower side of the contact lens.
- this aspect by reducing the curvature radius of the lens mounting surface, it is possible to effectively form a gap for facilitating air bubble removal without excessive deformation of the contact lens.
- a contact lens case according to the first or second aspect, wherein an outer peripheral edge portion of the lens placement surface is varied in the height direction on the circumference.
- the geometric center of the mounting surface is set at a position deviating from the apex, the position of the outer peripheral edge of the contact lens is defined by the outer peripheral edge of the lens mounting surface, and the geometric center of the contact lens is the lens
- the inclined mounting means is configured by being positioned at a position deviating from the apex of the mounting surface to the geometric center side of the lens mounting surface.
- the lens mounting surface itself is formed so as to be inclined from the vertical direction, so that the contact lens mounted on the lens mounting surface is positioned with a geometric center at a position off the vertex in the vertical direction. I can do it.
- the bottom surface of the lens housing portion on which the lens placement surface protrudes is tilted, and the positional deviation of the contact lens on the lens placement surface causes the lens relative to the tilted bottom surface on the outer peripheral edge of the lens placement surface.
- the contact lens is positioned and held in an inclined state, limited by the contact of the edge.
- a fourth aspect of the present invention is a contact lens case according to any one of the first to third aspects, wherein a geometric center of the contact lens deviates from a vertex of the lens placement surface on the lens placement surface. Grooves extending in the radial direction on the side opposite to the side are formed.
- a gap is positively formed between the inner surface of the contact lens and the lens mounting surface by the groove portion extending in the direction in which the bubbles that have entered the lower side of the contact lens are removed, thereby making contact Air bubbles are more easily removed from the lower side of the lens.
- an appropriate number of grooves can be provided, and it is only necessary to form at least a portion where the lens edges overlap.
- the starting point on the center side of the lens mounting surface in the groove is the central portion in the radial direction. May be.
- a fifth aspect of the present invention is a contact lens case according to any one of the first to fourth aspects, wherein the contact is made over the entire surface of the lens placement surface where the contact lens is placed.
- the curvature radius of the lens mounting surface is smaller than the curvature radius of the inner surface of the lens.
- the contact lens case according to this aspect it is possible to prevent only the outer peripheral portion of the spherical concave surface of the contact lens from coming into contact with the lens mounting surface and the central portion from being lifted from the lens mounting surface. Therefore, it is possible to avoid the problem that bubbles accumulated in the central portion of the contact lens that has lifted from the lens mounting surface are difficult to escape, and the central portion of the inner surface of the contact lens is positioned sufficiently close to the lens mounting surface. The intended bactericidal effect can be exhibited more stably.
- a sixth aspect of the present invention is a contact lens case according to any one of the first to fifth aspects, wherein hydrogen peroxide water is accommodated as the storage solution in the lens accommodating portion. .
- the hydrogen peroxide solution is used as the storage solution, so that an extremely excellent bactericidal action can be exerted on the contact lens.
- the lens mounting surface of the lens case made of an antibacterial material directly against the spherical concave surface of the contact lens
- the bactericidal action by the lens case continues to act on the contact lens, and the progress of bacterial contamination can be prevented.
- the bactericidal action by the hydrogen peroxide solution and the bactericidal action by the lens case are demonstrated in a mutually complementary relationship over time.
- the lens user can wear the sterilized contact lens with confidence.
- a bottom surface of a catalyst housing portion that houses a catalyst that exhibits a catalytic action in the decomposition reaction of the hydrogen peroxide solution is the lens housing portion.
- a bottom communication channel that connects the lens housing portion and the catalyst housing portion at the bottom portion is provided.
- the bottom surface of the catalyst housing portion is shallower than the bottom surface of the lens housing portion, an effective sterilizing effect can be exhibited as long as both the catalyst and the contact lens are below the water surface. It is also possible to make the bottom surface of the catalyst housing portion the same depth as or more than the bottom surface of the lens housing portion as in the embodiment. If the bottom surface of the catalyst housing portion is at the same depth or more as the bottom surface of the lens housing portion as in this embodiment, hydrogen peroxide water having a specific gravity greater than that of the water after decomposition is accommodated from the lens mounting surface. It will be guide
- the neutralized hydrogen peroxide solution is made from the lens mounting surface toward the catalyst housing portion using the specific gravity difference. Is actively introduced.
- the catalytic action of the catalyst accommodated in the catalyst accommodating portion is effectively exerted on the hydrogen peroxide solution accommodated in the lens accommodating portion, and the efficiency of the entire hydrogen peroxide solution accommodated in the case is increased.
- the bottom surface of the lens housing portion is directed toward the bottom surface of the catalyst housing portion.
- a bottom surface that is inclined downward is provided.
- a liquid level communication channel that communicates with each other also in the liquid level region is provided between the lens storage unit and the catalyst storage unit.
- an eighth aspect of the present invention is the contact lens case according to the sixth or seventh aspect, wherein a catalyst that exhibits a catalytic action in the decomposition reaction of the hydrogen peroxide solution is employed, and the catalyst Is provided with a catalyst body and a frame surrounding the outer periphery of the catalyst body.
- the contact lens case according to this aspect it is possible to limit the bubbles generated by the decomposition action of the hydrogen peroxide solution by the catalyst from being diffused more than necessary by the frame surrounding the outer periphery of the catalyst body. Therefore, it is possible to suppress such bubbles from diffusing into the lens housing portion and entering the lower side of the contact lens.
- a frame having a cylindrical shape extending in the vertical direction in hydrogen peroxide solution is preferably used as the frame in this aspect, and more preferably, the lower end of the frame is the same as the lower end of the catalyst body. The shape extends further downward. This makes it possible to more effectively suppress the diffusion of bubbles generated near the bottom of the hydrogen peroxide solution and the penetration into the lower side of the contact lens.
- the contact lens case according to any one of the first to eighth aspects, wherein a lid that covers the lens housing portion is provided so as to be openable and closable.
- a limiting projection is provided on the inner surface of the body so as to be opposed to the lens mounting surface of the lens housing portion, and protrudes into the preserving liquid and restricts the contact lens from rising from the lens mounting surface. It is what.
- the bactericidal effect of the lens mounting surface with respect to the spherical concave surface of the contact lens can be more stably exhibited. That is, if some of the bubbles remain on the lower side of the contact lens, the contact lens rises and a large gap is formed between the spherical concave surface of the contact lens and the lens mounting surface. There is a risk that the sterilizing effect will not be sufficiently exerted.
- oxygen gas generated during the neutralization process may enter the lower side of the contact lens. Therefore, in this aspect, the contact lens can be pushed down by the restricting protrusion and held in the approach or contact state with the lens placement surface. Thereby, it becomes possible to obtain the sterilization effect on the contact lens by the lens mounting surface more stably.
- the bactericidal action of the lens case with the antibacterial material can be complementarily exhibited with respect to the contact lens accommodated in the lens accommodating portion.
- the weak bactericidal action of the preservation solution is complemented by the bactericidal action of the lens case, so that a comprehensively excellent bactericidal effect can be obtained.
- the state is maintained by the sterilization action of the lens case, and an overall excellent sterilization effect can be obtained.
- the lens mounting surface is directly superimposed on the spherical concave surface of the contact lens, where tear exchange efficiency is low and bacterial contamination is likely to be a problem when worn. The effect can be exerted more effectively against the problem of bacterial contamination associated with wearing contact lenses.
- the contact lens case of the present invention since the contact lens is held in an inclined state on the lens mounting surface, even if a bubble enters the lower side of the contact lens, such a bubble can be easily formed from the top of the lens edge. Can be discharged. Therefore, the spherical concave surface of the contact lens and the lens mounting surface can be positioned closer together to improve the adhesion, and the sterilization effect on the contact lens by the lens mounting surface is more effectively and stably exhibited. It becomes possible to make it.
- FIG. 5 The top view which shows the case main body of the contact lens case as one Embodiment of this invention. II-II sectional drawing in FIG. III-III sectional view in FIG.
- the perspective view of the case main body shown by FIG. FIG. 5 is a cross-sectional view illustrating the entire structure of a contact lens case in which a lid is attached to the case main body shown in FIGS. Sectional drawing equivalent to FIG. 5 which shows the contact lens case as 2nd embodiment of this invention. Sectional drawing equivalent to FIG. 5 which shows the contact lens case as 3rd embodiment of this invention.
- FIG. 1 to 4 show a case main body 10, and a cover 12 is attached to the case main body 10 as shown in FIG.
- a lens case 14 is provided.
- FIG. 5 shows the contact lens case 14 in use.
- the case main body 10 has a substantially rectangular block shape as a whole, and a liquid containing recess 16 is formed on the upper surface thereof in a rectangular shape.
- the liquid housing recess 16 is composed of a catalyst housing portion 18 located in the center portion in the left and right (left and right in FIG. 1) direction, and a pair of lens housing portions 20 and 20 located in both side portions in the left and right direction. Yes.
- a 3% concentration hydrogen peroxide solution 24 is stored as a preserving liquid having a sterilizing action in the liquid storage recess 16, and the hydrogen peroxide solution 24 can be stored in both the catalyst housing 18 and the lens housings 20 and 20.
- the catalyst housing part 18 and the lens housing parts 20, 20 are all recessed in the upper surface of the case body 10, and the catalyst housing part 18 is subjected to a neutralization reaction of hydrogen peroxide water.
- a catalyst 26 that exhibits catalytic action is accommodated.
- the left and right contact lenses 28, 28 of the soft type are accommodated in the lens accommodating portions 20, 20, respectively (see FIG. 5).
- partition walls 30 extending in the front-rear direction (up and down in FIG. 1) are formed on the left and right sides of the catalyst housing portion 18, that is, at the boundary between the catalyst housing portion 18 and the lens housing portions 20, 20. Yes.
- the partition wall 30 protrudes from the bottom surface of the housing recess 16 and substantially reaches the opening of the housing recess 16.
- an appropriate number (two in this embodiment) of cutout windows 32 are formed in the partition wall 30 in the front-rear direction, and the cutout windows 32 extend from the base end portion to the tip end portion of the partition wall 30.
- the partition wall 30 is divided into a plurality of parts in the front-rear direction.
- the contact lenses 28, 28 accommodated in the left and right lens accommodating portions 20, 20 are stopped in the lens accommodating portions 20, 20 by the partition walls 30, 30. This prevents the contact lenses 28, 28 housed in the lens housing portions 20, 20 from moving to the catalyst housing portion 18 or coming into contact with the catalyst 26.
- the left and right lens housing portions 20 and 20 are connected to the catalyst housing portion 18 by the cutout windows 32 formed in the respective partition walls 30.
- the stored hydrogen peroxide solution 24 can flow between the left and right lens housing parts 20 and 20 and the catalyst housing part 18 through the notch window 32 as a communication channel.
- the cutout window 32 has a depth reaching the bottoms of the lens housing part 20 and the catalyst housing part 18, whereby the lens housing part 20 and the catalyst housing part 18 communicate with each other between the bottom parts.
- Each of the bottom communication channel and the liquid level communication channel that communicates between both the liquid level parts is constituted by the cutout window 32.
- the left and right lens housing portions 20 and 20 are formed with lens support portions 34 and 34 that protrude upward in the opening direction of the lens housing portion 20 at the center portion of the bottom portion, respectively.
- the lens support portion 34 has a partial spherical shape obtained by cutting a sphere having a substantially constant radius of curvature with a small circle, and protrudes upward from the substantially circular bottom surface of the lens housing portion 20. .
- a spherical lens mounting surface 36 is configured by the surface of the lens support portion 34.
- the lens support portion 34 is arranged so that the entire lens placement surface 36 is below the surface of the hydrogen peroxide solution 24 in the lens housing portion 20 in a flat state where the case body 10 is placed on the horizontal support surface. It is formed with a height dimension that is sufficiently lower than the depth dimension of the accommodating portion 20 (that is, the maximum height dimension that is lower than the liquid level height of the hydrogen peroxide solution 24).
- the lens mounting surface 36 is supported by the spherical concave surface 38 of the contact lens 28 being overlaid. At this time, it is desirable that the lens mounting surface 36 is not provided with a hole or the like so that the lens mounting surface 36 is opposed to substantially the entire spherical concave surface 38 of the contact lens 28.
- the lens mounting surface 36 is approximately approximate to the radius of curvature R1 of the spherical concave surface 38 of the contact lens so that the entire surface of the lens mounting surface 36 is overlapped with the spherical concave surface 38 of the superimposed contact lens 28 sufficiently close. It is desirable to set the radius of curvature.
- the curvature radius of the lens mounting surface 36 is set within a range of R1 ⁇ 5 mm in consideration of the flexibility of the curvature radius of a contact lens having a high water content such as a soft contact lens.
- the mounting region of the contact lens 28 on the lens mounting surface 36 has a curvature radius smaller than the curvature radius of the spherical concave surface 38 of the contact lens over the entire surface. This effectively prevents a gap from occurring in the central portion of the contact lens 28 between the opposed surfaces of the spherical concave surface 38 of the contact lens 28 and the lens mounting surface 36, and the distance between the opposed surfaces due to the gap is reduced. It is possible to avoid problems such as increase and retention of bubbles in the gap.
- the lens support portion 34 protrudes from the central portion of the lens housing portion 20, thereby forming a substantially annular circumferential groove 40 that extends around the lens support portion 34 in the circumferential direction.
- the inner surface of the peripheral wall of the lens housing portion 20 is an inclined surface that expands toward the opening, and the peripheral groove 40 is formed by varying the inclination angle and the slope length toward the opening in the circumferential direction.
- the depth is different in the circumferential direction. That is, the circumferential groove 40 has a slope inclined downward toward the catalyst housing portion 18 so that the depth dimension of the circumferential groove 40 is deepest on the catalyst housing portion 18 side and shallowest on the opposite case outer side. It is attached.
- the circumferential groove 40 of the lens housing portion 20 is connected to the bottom surface 42 of the catalyst housing portion 18 through a cutout window 32 provided in the partition wall 30. Further, the bottom surface 42 of the catalyst housing portion 18 has a depth dimension equal to or greater than the deepest portion of the bottom surface of the lens housing portion 20. In particular, in this embodiment, the bottom surface 42 continues to the left and right lens housing portions 20, 20. In a region including the bottom surface of the portion where the cutout windows 32 and 32 are formed, a gradient is gradually inclined downward from the bottom surface of the lens housing portion 20 (the bottom surface of the circumferential groove 40) toward the bottom surface 42 of the catalyst housing portion 18. .
- the bottom surface of the liquid storage recess 16 of the case body 10 is gradually inclined downward from the left and right end portions where the lens storage portions 20 and 20 are located toward the central portion where the catalyst storage portion 18 is provided.
- the gradient is given as a whole.
- the bottom portion of the circumferential groove 40 that constitutes the bottom surface of the lens housing portion 20 is an inclined surface that is inclined downward toward the catalyst housing portion 18 as described above. 34 is inclined in the same direction as a whole.
- the lens mounting surface 36 of the lens support portion 34 has a geometric center (a center point of an area in a front view in a direction orthogonal to the bottom surface of the lens housing portion 20) P1 and a vertex thereof (a flat placement of the case body 10). The highest point in the vertical direction in the state) is set at a position deviating downward from P2 on the catalyst housing portion 18 side.
- the lens mounting surface 36 has an outer peripheral shape larger than the contact lens 28 by a predetermined amount, and the contact lens 28 superimposed on the lens mounting surface 36 has an outer peripheral edge (lens edge) that accommodates the lens.
- the lens 20 is positioned and held at the approximate center of the lens mounting surface 36.
- the geometric center (optical center in the case of a spherical lens) of the contact lens 28 deviates from the vertex P2 of the lens placement surface 36 toward the geometric center P1, and is positioned at substantially the same position as the geometric center P1.
- the entire contact lens 28 is tilted and held on the catalyst housing portion 18 side.
- a groove 44 extending from the outer peripheral edge toward the center is formed on the lens placement surface 36 on a radial line from the apex P2 opposite to P1. That is, the groove 44 is on the upper side (upward in the tilt direction of the bottom surface of the lens housing part 20) opposite to the lower side (catalyst housing part 18 side) where the geometric center of the contact lens deviates from the apex P2 of the lens mounting surface 36. Is provided.
- the entire shape of the lens mounting surface 36 is substantially a heart shape that is narrowed toward the catalyst housing 18 (see FIG. 4).
- the upper portion of the lens mounting surface 36 where the groove 44 is formed has a smaller radius of curvature than the lower portion.
- a gap 46 is positively formed between the lens mounting surface 36 and the inner surface of the contact lens 28 in the formation region of the groove 44, and this gap 46 is outside the outer peripheral edge of the contact lens 28. It is opened in the direction.
- the catalyst 26 housed and arranged in the central catalyst housing portion 18 is formed of a material that exhibits a catalytic action on the decomposition of the hydrogen peroxide solution 24 at least a part of the surface in contact with the hydrogen peroxide solution 24.
- a metal catalyst is preferably used so that a stable catalytic action can be exerted in a plurality of contact lens sterilization treatments.
- at least one metal selected from the group consisting of platinum, silver, palladium, copper, manganese, cobalt and aluminum and at least one of these metal oxides is employed as the material of the catalyst 26.
- the mass, surface area, and shape of the catalyst 26 are appropriately set to adjust the buoyancy of oxygen gas that acts on the catalyst 26, so that the catalyst 26 is initially hydrated when the hydrogen peroxide solution 24 is hydrated. Floats on the surface of the hydrogen peroxide solution 24, while the catalyst 26 sinks into the hydrogen peroxide solution 24 upon completion of hydration. More specifically, almost the entire surface of the fish-shaped catalyst 26 is covered with a metal catalyst, and the surface area is increased by the concave and convex portions forming the fish, while the dorsal fin-shaped protrusion is formed on the fish-shaped rear surface.
- a support protrusion 48 is formed on the bottom surface 42 of the catalyst accommodating portion 18 so as to protrude from the left and right at the center portion. Then, the bottom surface of the catalyst 26 immersed in the hydrogen peroxide solution 24 is placed on the tip of the support protrusion 48 so that the entire bottom surface of the catalyst 26 is prevented from coming into close contact with the bottom surface 42 of the catalyst housing portion 18. It has become.
- the catalyst 26 is integrally provided with a frame 52 that surrounds the entire periphery of the fish-shaped catalyst main body 50.
- the frame 52 is formed in a cylindrical shape that surrounds the entire periphery of the catalyst main body 50 with a vertical cross section extending in the vertical direction.
- the lower end of the frame body 52 is substantially the same as the lowermost end of the catalyst body 50, and the upper end of the frame body 52 is substantially the same as the uppermost end of the catalyst body 50.
- the frame 52 is formed in a shape and size that covers the catalyst 26 in any side view over the entire circumference.
- a support shaft portion 54 that protrudes outward in the left-right direction in the frame 52 is integrally provided at one end portion (fish-shaped tail side end portion) of the catalyst 26 in the length direction.
- the catalyst housing portion 18 of the case body 10 is provided with a pair of locking pieces 56, 56 facing each other in the back (upper side in FIG. 1) in the left-right direction. Then, both ends of the support shaft portion 54 of the catalyst 26 are locked by a pair of locking pieces 56, 56, so that the support shaft portion 54 is positioned and supported so that it can be prevented from rising.
- the catalyst 26 supported by the support shaft portion 54 is allowed to rotate around the central axis of the support shaft portion 54 extending in the left-right direction. As it gradually changes as the neutralization progresses, it is oscillated and displaced around the central axis of the support shaft portion 54. As a result, as described above, the catalyst 26 floats at the initial stage of the hydration of the hydrogen peroxide solution 24 (the fish-shaped head side floats), and the float / sink operation is manifested in which the catalyst 26 sinks when the hydration is completed. ing.
- the lens support portion 34 constituting the lens mounting surface 36 is formed of an antibacterial material.
- the entire case main body 10 is antibacterial. It is integrally molded with materials.
- antibacterial materials known materials can be appropriately employed.
- the case body 10 is provided with a lid 12 that can be opened and closed with respect to the upper surface thereof, so that the opening of the liquid storage recess 16 is covered over the entire surface.
- the lid body 12 has a substantially rectangular plate shape as a whole, and the outer peripheral portion of the lower surface thereof is an overlapping surface with respect to the opening peripheral edge portion of the liquid storage recess 16 in the case body 10.
- a pair of limiting protrusions 58 and 58 are formed to protrude from the central portion of the lid body 12 on the left and right sides.
- the restricting protrusions 58 and 58 are provided at positions facing the lens support portions 34 and 34 when the lid 12 is attached to the case body 10.
- the restricting protrusions 58 and 58 are provided with a spherical convex surface in the same manner as the lens support parts 34 and 34, and each restricting protrusion is in a closed state in which the lid 12 is attached to the case body 10.
- the top ends of the front end 58 and the lens support 34 are opposed to each other with a predetermined gap in the vertical direction. That is, the restricting protrusion 58 of the lid 12 has a height that protrudes downward from the water surface of the hydrogen peroxide solution 24 stored in the case body 10 when the restriction protrusion 58 is attached to the case body 10. .
- the gap between the opposing projections 58 and the lens support 34 is slightly larger than the thickness of the contact lens 28 accommodated in the contact lens case 14.
- the contact lens 28 housed in the lens housing portion 20 and placed on the lens placement surface 36 of the lens support portion 34 is restricted from flying by the restriction projection 58.
- the contact lens 28 is prevented from floating up to the water surface of the hydrogen peroxide solution 24, so that the contact lens 28 is submerged in the hydrogen peroxide solution 24 and held on the lens mounting surface 36. It has become.
- the contact lenses 28 and 28 are sterilized as follows, for example.
- the contact lens user places the case body 10 from which the lid 12 has been removed in a flat state on a table or the like, and the peroxidation for lens sterilization prepared in advance in the liquid storage recess 16. Hydrogen water 24 is injected and stored.
- the user removes the contact lens 28 and accommodates the removed contact lens 28 in the lens housing portion 20 of the case body 10.
- the contact lens 28 is accommodated in the lens accommodating portion 20 so as to be convex upward, and the spherical concave surface of the contact lens 28 is superposed on the lens mounting surface 36.
- the cover body 12 is put on the case body 10 and assembled to start sterilization of the contact lenses 28 and 28. That is, the contact lenses 28, 28 accommodated in the lens accommodating portions 20, 20 are immersed in the hydrogen peroxide solution 24, so that the contact lenses 28, 28 are sterilized for a predetermined time. The sterilization of the contact lenses 28, 28 with the hydrogen peroxide solution 24 continues until the decomposition reaction of the hydrogen peroxide solution 24 proceeds and the neutralization is substantially completed.
- the contact lens 28 placed on the lens placement surface 36 has an inclined structure of the entire lens placement surface 36, a biased structure between the geometric center point P1 and the apex P2 on the lens placement surface 36, and the lens housing portion 20.
- the lens is supported by an inclined mounting means composed of one or a plurality of such as a structure of abutting the peripheral wall of the peripheral groove and the bottom surface 42 of the peripheral groove 40 or a distribution of the radius of curvature set in each part of the lens mounting surface 36.
- the part 34 is held in an inclined state.
- the outer peripheral edge (lens edge) of the contact lens 28 is inclined to the left and right of the case body 10 in a state where it is the lowermost part on the catalyst housing part 18 side and the uppermost part on the opposite side in the diameter direction.
- the positioning is maintained.
- the lowest point of the contact lens 28 that is supported by being superimposed on the lens mounting surface 36 is positioned below the lowest point of the catalyst 26 that has floated when the hydrogen peroxide solution 24 is neutralized. Is desirable.
- the contact lens 28 tilted and held in this way contact is made at the uppermost portion of the outer peripheral edge (range edge) (the ends located on the left and right sides of the case body 10 in FIG. 5).
- the outward opening angle at the outer peripheral edge of the spherical concave surface 38 of the lens 28 is small (close to the horizontal, preferably the downward tilt angle with respect to the horizontal line is 10 degrees or less).
- the distance from the apex P2 of the lens placement surface 36 to the outer peripheral edge of the contact lens 28 is different in the circumferential direction, and the case body 10 in FIG. It is the smallest at each end located on the left and right sides.
- the groove portion 44 forms a gap 46 open to the outer periphery at the portion where the outer peripheral edge portion of the contact lens 28 is positioned at the uppermost position, the air bubbles generated by the groove portion 44 are reduced. Based on the guiding action, the discharge of bubbles from the lower side of the contact lens 28 to the outside can be more easily permitted.
- the edge of the contact lens 28 is set at the deepest position on the catalyst housing portion 18 side, the oxygen gas generated around the catalyst 26 itself enters the lower side of the contact lens 28. It can be effectively prevented.
- the restriction protrusions 58 and 58 of the lid 12 enter the lens housing portions 20 and 20 of the case body 10 and protrude into the hydrogen peroxide solution 24.
- the lens is placed on the contact lenses 28 and 28 placed on the lens placement surfaces 36 and 36.
- the sterilization treatment of the contact lenses 28 and 28 by the hydrogen peroxide solution 24 is completed by leaving it to stand for a predetermined time.
- the completion of the sterilization process is easily confirmed by visually confirming that the catalyst 26 is sinking to the bottom of the catalyst housing portion 18, since the decomposition reaction of the hydrogen peroxide solution 24 is completed. be able to. That is, after the user confirms that the hydrogen peroxide solution 24 has been decomposed and turned into water, the user can take out the sterilized contact lenses 28 and 28 from the solution and safely wear them.
- the contact lenses 28 and 28 are not worn immediately after the neutralization of the hydrogen peroxide solution 24 is completed. In this case, the contact lenses 28 and 28 are immersed and stored in a liquid that has lost its bactericidal effect. However, even under such a state, the contact lenses 28 and 28 can exhibit the effect of maintaining the sterilized state. That is, since the case body 10 is formed of an antibacterial material, the antibacterial action of the case body 10 is caused by the contact lens 14 on the lens mounting surface 36 where the spherical inner surfaces of the contact lenses 28 are overlapped and brought into contact with each other. Can be efficiently applied.
- the contact lens 28 is stored in a state in which the lens mounting surface 36 exhibiting an antibacterial action is directly superimposed on the spherical concave surface 38 of the contact lens 28, which is likely to have a problem of adverse effects of microorganisms when the contact lens 28 is worn.
- the antimicrobial effect with respect to the contact lens 28 can be exhibited more effectively.
- the lid 12 can also be formed of an antibacterial resin. For example, by forming the lid 12 from a highly transparent material, the state of the contact lens or the preservative liquid during sterilization can be determined. You may make it visible visually from the exterior of a case, without removing.
- the lens mounting surface 36 has a spherical shape that is convex upward, and the contact lens 28 is supported in a mounted state with a spherical concave surface superimposed thereon, when the contact lens 28 is worn,
- the user inserts the fingertip into the preservation solution from the opening of the lens housing portion 20 that appears when the lid 12 is removed and opens, and then picks it with the spherical convex surface of the contact lens 28 superimposed on the fingertip. It can be put out.
- the user can take out the contact lens 28 from the contact lens case 14 and wear it on the cornea without touching the finger on the spherical concave surface 38 side where microbial contamination is likely to be a problem in the contact lens 28.
- the catalyst 26 floats and sinks as the decomposition reaction of the hydrogen peroxide solution 24 proceeds, so that the hydrogen peroxide solution 24 is stirred and fluidized.
- notch windows 32, 32 extending from the lower end to the upper end are formed on the partition walls 30, 30 between the catalyst housing portion 18 and the lens housing portions 20, 20, and a communication channel is provided.
- the oxygen gas bubbles generated and floating around the catalyst 26 and further diffusing to the vicinity of the water surface also exert a stirring and fluid action on the hydrogen peroxide solution 24.
- the hydrogen peroxide solution 24 and the water after decomposition thereof are Using the specific gravity difference, the undecomposed hydrogen peroxide solution 24 is actively guided from the lens housing portions 20 and 20 toward the catalyst housing portion 18 and collected in the vicinity of the catalyst 26, thereby providing a catalytic action. It can be exhibited more stably and efficiently.
- the contact lens case 14 of the present embodiment a positive flow action is exerted on the hydrogen peroxide solution 24 in the liquid storage recess 16 including the catalyst storage unit 18 and the lens storage units 20 and 20.
- the decomposition reaction of the hydrogen peroxide solution 24 is homogenized.
- the target sterilization treatment of the contact lens 28 can be stably performed over a substantially constant time while the concentration of the hydrogen peroxide solution 24 is also accurately controlled.
- the present invention can also be applied to a contact lens case used in an MPS method that employs an MPS solution instead of the hydrogen peroxide solution 24 as a preservative solution having a bactericidal action.
- an MPS solution instead of the hydrogen peroxide solution 24 as a preservative solution having a bactericidal action.
- a catalyst housing portion in the case body.
- a structure including only a pair of lens housing portions that are connected to each other or independent from each other is also adopted. It becomes possible.
- the weak bactericidal action in the MPS solution is compensated by the bactericidal action of the lens case itself, so that it depends on both the solution and the lens case. Due to the collaborative bactericidal action, an excellent bactericidal effect can be given to the contact lens immersed in the MPS solution.
- the sterilization effect by the lens case is positively exerted on the spherical concave surface of the contact lens, which is liable to be adversely affected by the adhesion of microorganisms, so that problems caused by the adhesion of microorganisms can be effectively avoided.
- the same effect as that of the above-described embodiment can be exhibited in the MPS method as well.
- the contact lens when the contact lens is immersed in the MPS solution and superimposed on the lens mounting surface, or when the MPS solution is injected into the lens housing portion after the contact lens is mounted on the lens mounting surface, the contact lens is used. Even when air bubbles enter the lower side of the contact lens, such air bubbles can be easily discharged from the outer periphery of the uppermost portion of the contact lens held in an inclined state, and many air bubbles can remain on the lower side of the contact lens. Is prevented. Therefore, as in the above-described embodiment showing the application example to the hydrogen peroxide solution method, the spherical inner surface of the contact lens is effectively superimposed on the lens mounting surface in a close-up state. The bactericidal action on the contact lens by the surface can be stably and effectively exhibited.
- the partition walls 30 and 30 provided between the catalyst housing portion 18 and the lens housing portions 20 and 20 are not necessarily required.
- the catalyst 26 is put in a basket or the movement of the contact lens 28 is restricted for the purpose of avoiding adverse effects such as metal ions of the catalyst 26. It is desirable that a means for avoiding contact of the contact lens 28 with the catalyst 26 is provided by being restricted by a part or the like.
- a neutralization accelerator or the like instead of the metal catalyst. There is no need to provide a partition wall 30 or the like that partitions the catalyst housing portion 18.
- the specific shape and structure of the partition wall itself are not particularly limited, and the communication is formed on the partition wall and connects the catalyst housing portion 18 and the lens housing portions 20 and 20.
- the specific structure and number of the flow paths are not limited.
- a communicating flow path is comprised by providing an appropriate number of through-holes with respect to this partition wall. Is also possible.
- the specific shapes of the lens support portion 34 and the lens placement surface 36 are not limited to the above embodiment.
- the entire surface of the spherical concave surface of the contact lens 28 is not provided with the groove (44) on the lens mounting surface 36.
- a mode in which the lens mounting surface 36 is approached substantially uniformly and opposed to each other may be employed.
- the bottom surface of the catalyst housing recess 18 is generally provided with a gradient that gradually inclines downward from the left and right side end portions toward the center portion.
- the hydrogen peroxide solution 24 utilizes the specific gravity of the catalyst housing concave portion from the lens housing portions 20, 20 on both sides. It can be collected more efficiently in the place 18.
- the lens mounting surface 36 shown in FIG. 6 is formed into an elliptical shape, so that the lens mounting surface 36, the contact lens 28, In the meantime, it is possible to positively form a gap opened on the outer peripheral side of the contact lens 28.
- the radius of curvature of the case body 10 on the diameter extending in the left-right direction (left-right direction in FIG. 1) of the case body 10 is set on the diameter extending in the front-rear direction (up-down direction in FIG. 1).
- the outermost portion of the contact lens 28 placed on the lens placement surface 36 is outside.
- a gap opened at the peripheral edge can be formed.
- a circular region smaller than the contact lens 28 is formed in the spherical portion of the contact lens 28 in the central portion of the lens mounting surface 36.
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Eyeglasses (AREA)
Abstract
Description
Claims (9)
- コンタクトレンズを殺菌作用のある保存液に浸漬させて収容するレンズ収容部が上方に向かって開口して設けられたコンタクトレンズケースにおいて、
前記保存液の液面下に位置して上方に凸となる球面状を有しており、前記コンタクトレンズが球状凹面を重ね合わされて載置状態で保持されるレンズ載置面が、前記レンズ収容部の底部に突出して設けられていると共に、該レンズ載置面が抗菌性材料によって形成されており、更に、該レンズ載置面に載置された前記コンタクトレンズの幾何中心を該レンズ載置面の頂点から外れた位置に位置決めする傾斜載置手段が設けられていることを特徴とするコンタクトレンズケース。 - 前記傾斜載置手段により前記レンズ載置面の頂点から前記コンタクトレンズの幾何中心が外れる方向と反対側に延びる半径方向線上で、該レンズ載置面の曲率半径が該コンタクトレンズの内面の曲率半径より小さくされることにより、該レンズ載置面と該コンタクトレンズの外周縁部の内面との間に隙間が生ぜしめられるようになっている請求項1に記載のコンタクトレンズケース。
- 前記レンズ載置面の外周縁部が周上で高さ方向に異ならされることで該レンズ載置面の幾何中心が頂点から外れた位置に設定されており、該レンズ載置面の外周縁部で前記コンタクトレンズの外周縁部の位置が規定されて、該コンタクトレンズの幾何中心が該レンズ載置面の頂点から該レンズ載置面の幾何中心側に外れた位置に位置決めされることにより、前記傾斜載置手段が構成されている請求項1又は2に記載のコンタクトレンズケース。
- 前記レンズ載置面において、前記レンズ載置面の頂点から前記コンタクトレンズの幾何中心が外れる側とは反対の側を半径方向に延びる溝部が形成されている請求項1~3の何れか1項に記載のコンタクトレンズケース。
- 前記レンズ載置面における前記コンタクトレンズが載置される領域の全面に亘って、該コンタクトレンズの内面の曲率半径よりも該レンズ載置面の曲率半径が小さくされている請求項1~4の何れか1項に記載のコンタクトレンズケース。
- 前記レンズ収容部に対して、前記保存液として過酸化水素水が収容される請求項1~5の何れか1項に記載のコンタクトレンズケース。
- 前記過酸化水素水の分解反応に触媒作用を発揮する触媒を収容する触媒収容部が形成されており、該触媒収容部の底面が前記レンズ収容部の底面に比して同一以上の深さで形成されていると共に、それらレンズ収容部と触媒収容部とを底部において連通する底部連通流路が設けられている請求項6に記載のコンタクトレンズケース。
- 前記過酸化水素水の分解反応に触媒作用を発揮する触媒が採用されており、該触媒が、触媒本体と該触媒本体の外周を囲む枠体とを備えている請求項6又は7に記載のコンタクトレンズケース。
- 前記レンズ収容部を覆蓋する蓋体が開閉可能に設けられていると共に、該蓋体の内面において前記レンズ収容部の前記レンズ載置面に対向位置せしめられ、前記保存液中にまで突出して該レンズ載置面からの前記コンタクトレンズの浮き上がりを制限する制限突部が設けられている請求項1~8の何れか1項に記載のコンタクトレンズケース。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012557658A JP5615942B2 (ja) | 2011-02-14 | 2011-02-14 | コンタクトレンズケース |
| EP11858582.7A EP2676565A4 (en) | 2011-02-14 | 2011-02-14 | Contact lens case |
| US13/978,647 US9095195B2 (en) | 2011-02-14 | 2011-02-14 | Contact lens case with lens loading surface |
| PCT/JP2011/000816 WO2012111038A1 (ja) | 2011-02-14 | 2011-02-14 | コンタクトレンズケース |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/000816 WO2012111038A1 (ja) | 2011-02-14 | 2011-02-14 | コンタクトレンズケース |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012111038A1 true WO2012111038A1 (ja) | 2012-08-23 |
Family
ID=46672005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2011/000816 Ceased WO2012111038A1 (ja) | 2011-02-14 | 2011-02-14 | コンタクトレンズケース |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9095195B2 (ja) |
| EP (1) | EP2676565A4 (ja) |
| JP (1) | JP5615942B2 (ja) |
| WO (1) | WO2012111038A1 (ja) |
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| JP2018068871A (ja) * | 2016-11-02 | 2018-05-10 | 株式会社トーメーポート | ソフトコンタクトレンズ用収納ケース |
| JP2022066908A (ja) * | 2020-10-19 | 2022-05-02 | 株式会社トーメーポート | ソフトコンタクトレンズ用収納ケース |
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| US11534337B2 (en) * | 2014-09-09 | 2022-12-27 | Invent Horizon, LLC | Contact lens tool kit and method of using |
| US12178205B2 (en) * | 2016-02-09 | 2024-12-31 | Rutgers, The State University Of New Jersey | Systems and methods for storing and preserving implantable devices |
| US12419978B2 (en) | 2016-02-09 | 2025-09-23 | Rutgers, The State University Of New Jersey | Antimicrobial composition for inhibiting microbial organisms in allograft and the method thereof |
| KR102605025B1 (ko) * | 2016-02-09 | 2023-11-24 | 존슨 앤드 존슨 비젼 케어, 인코포레이티드 | 콘택트 렌즈 패키징 |
| US11947193B2 (en) * | 2017-02-08 | 2024-04-02 | Johnson & Johnson Vision Care, Inc. | Contact lens packaging |
| CA3173598A1 (en) * | 2021-09-13 | 2023-03-13 | Johnson & Johnson Vision Care, Inc. | Contact lens packages and methods of handling and manufacture |
| EP4327656A4 (en) * | 2021-10-06 | 2025-03-12 | Coretissue Bioengineering Inc. | CONTAINER FOR STORING BIOLOGICAL TISSUE |
| CN118715168A (zh) | 2021-12-16 | 2024-09-27 | 强生视力健公司 | 加压的或真空密封的接触镜片包装件 |
| US12064018B2 (en) | 2022-09-27 | 2024-08-20 | Johnson & Johnson Vision Care, Inc. | Contact lens package with draining port |
| US12187522B2 (en) | 2023-01-13 | 2025-01-07 | Johnson & Johnson Vision Care, Inc. | Contact lens packages having an absorbent member |
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| JP2018068871A (ja) * | 2016-11-02 | 2018-05-10 | 株式会社トーメーポート | ソフトコンタクトレンズ用収納ケース |
| JP2022066908A (ja) * | 2020-10-19 | 2022-05-02 | 株式会社トーメーポート | ソフトコンタクトレンズ用収納ケース |
| JP7633793B2 (ja) | 2020-10-19 | 2025-02-20 | 株式会社トーメーポート | ソフトコンタクトレンズ用収納ケース |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5615942B2 (ja) | 2014-10-29 |
| EP2676565A1 (en) | 2013-12-25 |
| EP2676565A4 (en) | 2017-10-11 |
| US20130277242A1 (en) | 2013-10-24 |
| US9095195B2 (en) | 2015-08-04 |
| JPWO2012111038A1 (ja) | 2014-07-03 |
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