JPWO2012131784A1 - Contact lens package - Google Patents

Abstract

To provide a contact lens package having a novel structure that can be suitably used as a distribution package that accommodates contact lenses and is provided to the market, and that can stably accommodate and hold contact lenses. A contact lens package 10 in which two contact lenses 18 and 18 are pressed and deformed in the axial direction between exterior sheets 26 and 28 on both side surfaces of the retainer plate 16.

Description

  The present invention relates to a contact lens package that contains a contact lens together with a preservation solution, and more particularly to a contact lens package that is suitably used when distributing a soft contact lens to the market.

  The contact lens is sealed in a contact lens package after being manufactured by a lens manufacturer, distributed to the market, and provided to a user from a dealer.

  By the way, a hydrous soft contact lens etc. are generally provided in a contact lens package together with a storage solution. Such contact lens packages are conventionally formed on a container body made of a hard resin as described in JP-A-7-322911 (Patent Document 1) and US Pat. No. 4,691,820 (Patent Document 2). A blister package in which a storage solution and a contact lens are accommodated in the hollow and sealed with a cover film is employed.

  However, the blister package having such a conventional structure must be formed with a sufficient depth to accommodate the contact lens, and it is difficult to make it compact. For this reason, for example, when a large number of contact lenses are stocked or when a plurality of contact lenses are carried around, it is bulky, and it is often inconvenient to handle.

  Therefore, the applicant of the present invention previously disclosed in Japanese Patent No. 4586121 (Patent Document 3) is a contact having a novel structure in which a contact lens is housed in a reduced pressure state by pressing and deforming in the height direction (axial direction). A lens package was proposed. However, there are cases where it is required to store the contact lens in a more compact manner depending on the storage situation or use situation of the contact lens, and the present inventor repeated further studies and experiments in order to meet such a requirement. As a result of improvements, the present invention has been completed.

JP-A-7-322911 US Pat. No. 4,691,820 Japanese Patent No. 4586121

  The present invention has been made against the background of the above-mentioned circumstances, and a solution to that problem is to provide a contact lens package having a novel structure that can accommodate a contact lens together with a storage solution in a more compact manner. It is in.

  A first aspect of the present invention is a contact lens package in which a contact lens is housed in a package outer package together with a storage solution, and uses a retainer plate having rigidity higher than any of the contact lens and the package outer package, The contact lens is placed in a flat state on both side surfaces of the retainer plate, and the package exterior body is configured by overlapping and sealing the exterior sheets from both sides of the retainer plate. In the contact lens package, the two contact lenses are pressed and deformed in the axial direction between the outer sheet and the exterior sheet on both sides.

  In the contact lens package of this aspect, by using a retainer plate having a high rigidity and pressing the contact lens against the retainer plate, the contact lens can be pressed and deformed sufficiently small, and can be stably in the press-deformed state. The shape can be retained and saved.

  Moreover, in the contact lens package of this aspect, both the contact lenses are pressed and deformed in the axial direction by using both surfaces of the retainer plate, so that both of the two contact lenses are compact in one contact lens package. It can be accommodated in a stable shape holding state. As a result, it is needless to say that the size can be greatly reduced as compared with the blister package having the conventional structure, and the volume ratio can be compared with the single-unit storage structure described in Patent Document 3 according to the earlier application of the present applicant. Therefore, the compactness can be improved by 20 to 70%.

  Such downsizing is based on the configuration that the two contact lenses share the retainer plate in the accommodated state, and that each contact lens is sealed by covering with both package exteriors using both sides of the retainer plate. It is based on features. In this way, by utilizing the retainer plate skillfully, even when an external force is exerted in the accommodated state, repeated deformation such as bending and expansion / contraction in each contact lens is effectively prevented, and each contact in the package The compression state of the lens can be ensured stably, and it is also possible to prevent the occurrence of large local deformation and undesirable distortion due to the action of force from the outside of the package.

  According to a second aspect of the present invention, in the contact lens package according to the first aspect, the first plate and the second plate are overlapped on both side surfaces of the support sheet, and the first plate and the second plate are overlapped. The retainer plate is constituted by the plate, and the exterior sheet is overlapped on both sides of the support sheet in a region where the first plate and the second plate of the support sheet are out of the outer periphery side. Are sealed in a fluid-tight manner.

  In the contact lens package of this aspect, the manufacture of the package exterior body can be facilitated. In particular, since the exterior sheet on both sides of the support sheet is sealed to ensure the liquid sealability of the package, the material of the retainer plate and the like can be freely controlled without being restricted by the adhesion of the exterior sheet. It becomes possible to select. In addition, since the support sheet itself is not required to be rigid like the retainer plate, it is possible to easily perform the process even when the exterior sheet is fixed to both surfaces of the support sheet by welding or the like.

  According to a third aspect of the present invention, in the contact lens package according to the second aspect, the first housing region placed on the first plate and housing one of the two contact lenses, A second accommodation region that is placed on the second plate and accommodates the other of the two contact lenses is formed in a fluid-tight manner independently of each other.

  In the contact lens package of this aspect, only one of the contact lens accommodated on one side of the retainer plate and the contact lens accommodated on the other side can be opened and taken out. Therefore, for example, a mode in which two contact lenses housed in a package are used on different days is possible.

  According to a fourth aspect of the present invention, in the contact lens package according to the first aspect, the exterior sheets superposed from both sides of the retainer plate are fluid-tight with each other in a region where the retainer plate is disengaged to the outer peripheral side. The package exterior body in which the retainer plate is accommodated between the overlapping surfaces of the exterior sheet is configured by sealing the sheet.

  In the contact lens package of this aspect, the structure of the package exterior body can be simplified and the manufacture thereof can be facilitated. In particular, since the exterior sheets stacked from both sides of the retainer plate are sealed and the liquid sealing property of the package is ensured, the material of the retainer plate is made large without being restricted by the adhesion to the exterior sheet. It is possible to select with a degree of freedom. In addition, it is not necessary to weld the exterior sheet to the retainer plate, and the retainer plate can be accommodated in the package and made compact.

  According to a fifth aspect of the present invention, there is provided the contact lens package according to the first aspect, wherein the exterior sheet superposed from both sides of the retainer plate is a region where the contact lens housing region is out of the outer peripheral side. Thus, the package exterior body is configured by being fluid-tightly fixed to the retainer plate.

  In the contact lens package of this aspect, since the retainer plate extends to the sealed portion of the package, the rigidity of the entire package including the sealed portion is realized with a simple structure without requiring any special parts. can do. In particular, by providing the retainer plate in the sealing portion of the exterior sheet, the sealing performance and the reliability of the sealing portion can be improved.

  A sixth aspect of the present invention is the contact lens package according to the fifth aspect, wherein an outer peripheral portion of the retainer plate extends outward from a fixing portion of the exterior sheet.

  In the contact lens package of this aspect, the contact lens user can easily and stably perform an operation when the exterior sheet is peeled off from the retainer plate to open the package. That is, in a state where the extended portion of the retainer plate extending outward from the fixed portion of the exterior sheet is picked up and firmly supported by the fingertip of one hand, the retainer sheet is picked up by the fingertip of the other hand, thereby The plate can be easily opened while the plate is stably supported by the plate.

  A seventh aspect of the present invention is a contact lens package according to any one of the first, second, fourth, fifth and sixth aspects, wherein the two contact lenses are formed on one side of the retainer plate. A communication path is provided to connect a region where one of the two is accommodated and a region formed on the other side of the retainer plate and where the other of the two contact lenses is accommodated.

  In the contact lens package according to this aspect, the storage solution can be easily and stably sealed in the manufacturing stage. That is, since the two contact lens accommodation regions provided on both sides of the retainer plate are connected by the communication path, it is possible to inject the storage solution from only one contact lens accommodation region. In addition, since it is not necessary to manage the amount of the preservative solution sealed in each of the two contact lens storage areas, it is only necessary to manage the injection amount of the preservative liquid in the entire two contact lens storage areas. Easy to manufacture and manage.

  According to an eighth aspect of the present invention, in the contact lens package according to the seventh aspect, the communication path is constituted by a communication hole formed through the retainer plate.

  That is, the communication path described in the seventh aspect can be formed on the outer peripheral side of the retainer plate, for example, but the outer peripheral size of the package is increased by forming through the retainer plate according to this aspect. It is possible to easily form the communication passage with a sufficient cross-sectional area without changing the shape.

  According to a ninth aspect of the present invention, there is provided the contact lens package according to any one of the first to eighth aspects, wherein each side surface of the retainer plate is positioned by engaging with the contact lens. An engaging portion is provided.

  In the contact lens package according to this aspect, the contact lens can be more stably held at a predetermined position on the retainer plate in the accommodated state in which the contact lens is pressed and deformed. Unstable distortion and deformation can be prevented. Further, when the contact lens is used after opening the package, the contact lens is stably present at a predetermined position on the retainer plate, so that the user can use it easily.

  Note that the positioning engagement portion in this aspect covers, for example, an annular recess groove into which the lens edge portion is fitted, a recess having an appropriate shape such as a circle in which the entire lens is fitted, or a concave surface of the lens. By providing a convex part or the like that fits on the contact surface of the retainer plate, it can be suitably realized.

  In the contact lens package according to the present invention, the contact lenses accommodated on both sides of the retainer plate are not particularly limited as long as they can be deformed by pressing.

  For example, in the contact lens package according to any one of the first to ninth aspects, the two contact lenses disposed on both sides of the retainer plate may be the same as each other, or may have different optical specifications. It may have. If contact lenses with the same optical characteristics are accommodated on both sides of the retainer plate, the right and left eye contact lenses accommodated on both sides of the retainer plate can be used if the corrective optical characteristics of the left and right eyes are the same user. It can also be worn. Further, if the right and left eyes have different optical correction characteristics, the contact lenses housed on both sides of the retainer plate can be worn and used in order for the eyes that fit sequentially.

  In addition, when using simultaneously the contact lens accommodated in the both sides of the retainer plate, the communicating path as described in the said 8th aspect may be employ | adopted suitably. On the other hand, when the contact lenses housed on both sides of the retainer plate are sequentially used at intervals of one day, several days or weeks, the contact lens housing areas on both sides of the retainer plate are mutually fluidized. It is desirable to form it closely and independently.

  In the case of a near-sighted contact lens user, although the basic shapes such as a base curve and DIA adapted to the left and right eyes are the same, for example, ± 0.25D, ± 0.5D, ± 0.75D, ± 1. In many cases, the right and left correction lens powers (spherical lens powers) are different within a range of 1.0D or less such as 0D. In consideration of this fact, it is also preferable to combine the contact lenses disposed on both sides of the retainer plate so as to have different spherical lens powers of 1D or less. As a result, the contact lens user uses a contact lens package in which two contact lenses are combined and arranged on both sides of the retainer plate with a spherical lens power corresponding to the degree of difference in correction lens power between the left and right eyes. Thus, a pair of contact lenses to be worn on the left and right eyes can be provided in one contact lens package that is very thin and compact.

  As is apparent from the above description, in the contact lens package structured according to the present invention, a total of two contact lenses are accommodated in a state of being pressed and deformed in the axial direction on both surfaces of the retainer plate. Thus, the contact lens can be efficiently accommodated in a state of being made thinner while maintaining a stable shape. Therefore, in the contact lens package according to the present invention, it is possible to realize a large size reduction by thinning, and thereby, the convenience of carrying a large number of stocks and carrying can be greatly improved.

The top view of the contact lens package as 1st embodiment of this invention. The expanded longitudinal cross-sectional view used as the II-II cross section in FIG. The longitudinal cross-sectional view which shows the open state of the one side surface in the contact lens package shown by FIG. The top view of the contact lens package as 2nd embodiment of this invention. The expanded longitudinal cross-sectional view used as the VV cross section in FIG. The longitudinal cross-sectional view of the contact lens package as 3rd embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a contact lens package 10 as an embodiment of the present invention. The contact lens package 10 has a bag-shaped package exterior body 12, and a storage solution 14 is accommodated in the package exterior body 12 and sealed. Further, a retainer plate 16 is accommodated in the package exterior body 12, and contact lenses 18 are superimposed and held on both side surfaces (upper and lower side surfaces in FIG. 2) of the retainer plate 16, respectively. , It is immersed in the preservation solution 14 and accommodated in the package.

  More specifically, the retainer plate 16 has a substantially flat plate shape as a whole. The retainer plate 16 has a disk shape, and outer peripheral projections 20 and 20 are provided on the outer peripheral edge of the retainer plate 16 so as to protrude from both upper and lower side surfaces and extend in the circumferential direction.

  Both the upper and lower side surfaces surrounded by the outer peripheral projection 20 are circular recesses, and the bottom surfaces thereof are lens mounting surfaces 22 and 22. The diameter dimension of the lens mounting surface 22 is slightly larger than the outer diameter dimension of the contact lens 18 to be accommodated. Further, the height dimension of the step 24 formed by the outer peripheral projection 20 located on the outer peripheral portion of the lens mounting surface 22 is substantially the same as or slightly the same as the thickness dimension of the outer peripheral edge portion (edge portion) of the contact lens 18. It is desirable to set a large value.

  Thereby, in the retainer plate 16, the contact lens 18 superimposed on the lens mounting surface 22 is prevented from protruding outward from the lens mounting surface 22 by engaging the outer peripheral edge of the contact lens 18 with the step 24. The lens is placed on the lens mounting surface 22. As apparent from this, in this embodiment, the displacement of the contact lens 18 on the retainer plate 16 is limited by the concave lens mounting surfaces 22 and the steps 24 formed on both side surfaces of the retainer plate 16, respectively. Thus, a positioning engagement portion is formed which is held at a predetermined position.

  The retainer plate 16 is formed with an appropriate number of communication holes 25 penetrating in the thickness direction and communicating with the upper and lower surfaces. The communication holes 25 are formed on the upper and lower lens mounting surfaces 22, 22. It is open.

  By the way, the material of the retainer plate 16 having the above-described structure is not particularly limited, and in consideration of manufacturability, cost, stability, strength, etc., polyethylene, polyvinyl chloride, polypropylene, polyamide, etc. A synthetic resin material can be suitably employed. In particular, the retainer plate 16 can be advantageously formed as an integrally molded product in which the outer peripheral projections 20 and 20 are formed on the outer peripheral side of the lens mounting surfaces 22 and 22. Further, in order to make the overall size of the contact lens package 10 compact, it is desirable that the retainer plate 16 has a thickness dimension of, for example, about 0.2 to 2.0 mm at the site where the lens mounting surface 22 is formed. Depending on the material, required strength, etc., it can be set appropriately.

  On the other hand, the package exterior body 12 that accommodates the retainer plate 16 as described above can be formed of, for example, a hard resin case. In the present embodiment, the film-like first sheet 26 and the second sheet 26 are respectively formed. The sheets 28 are overlapped and their outer peripheral edge portions 30 are sealed by welding or the like.

  In addition, as the first sheet 26 and the second sheet 28 as the exterior sheets, it is possible to use a hard resin film, a metal sheet such as an aluminum alloy, or the like, but it is preferably thin and flexible. For example, a soft resin film or a laminate film in which a resin layer such as polypropylene is attached to an aluminum layer may be employed. For example, a laminate film in which a protective and decorative PET resin layer is laminated on the surface of the aluminum layer, and a CPP resin layer for heat welding is laminated on the back surface of the aluminum layer may be employed.

  Particularly, since the contact lens 18 to be accommodated is supported by the retainer plate 16 and accommodated in the package exterior body 12, the first and second sheets 26 and 28 have a large shape holding with respect to the contact lens 18. A soft film material that does not require support strength and is easy to handle, manufacture, and open can be suitably employed.

  In addition, the first sheet 26 and the second sheet 28 may be entirely or partially transparent. By adopting the first and second sheets 26 and 28 that are at least partially transparent, it can be visually confirmed that the contact lens 18 is accommodated in an unopened state.

  And the 1st sheet | seat 26 and the 2nd sheet | seat 28 are piled up mutually, and comprise the package exterior body 12, However, The outer-periphery edge parts 30 and 30 of this overlapping surface are mutually sealed, and the bag sealed Prior to the construction, the retainer plate 16 in which the two contact lenses 18 and 18 are superposed and held on the upper and lower lens mounting surfaces 22 and 22 and an appropriate amount of the storage solution 14 are accommodated inside. For example, at the stage where the first sheet 26 and the second sheet 28 are welded leaving a part of the outer peripheral edge portions 30, 30, the two contact lenses 18, 18 are formed through the unwelded openings. The retainer plate 16 and the preserving liquid 14 superimposed on the mounting surfaces 22 and 22 are put, and then the opening portion is welded. As a result, the first sheet 26 and the second sheet 28 are fluid-tightly sealed with each other in a region where the retainer plate 16 is deviated to the outer peripheral side, and the target contact lens package 10 can be manufactured.

  Note that the retainer plate 16 of the present embodiment has one contact lens 18 and the other contact lens through the outer peripheral side of the retainer plate 16 and the communication hole 25 as a communication path in a state of being accommodated in the package exterior body 12. Since the 18 storage areas are in communication with each other, it is possible to simultaneously enclose the storage liquid 14 and control the liquid volume in both storage areas. Moreover, the preservation | save liquid enclosed in a package can be suitably selected according to the material etc. of the contact lens 18 accommodated as conventionally well-known. Furthermore, after the package outer package 12 is sealed, sterilization treatment by ultraviolet rays, electromagnetic waves, heating, or the like may be performed as necessary.

  In the contact lens package 10 having such a structure, the first and second sheets 26 and 28 are superposed on the upper and lower lens placement surfaces 22 and 22 of the retainer plate 16 to give a predetermined tension, respectively. The lens is placed on the lens mounting surfaces 22 and 22 in the extended state. As a result, the lens optical axis between the retainer plate 16 and the sheet 26 (28) with respect to the contact lens 18 placed flat on the lens placement surfaces 22 on both sides of the retainer plate 16 is provided. A pressing force is exerted in the direction (axial direction). As a result, as shown in FIG. 2, the contact lens 18 is housed in the contact lens package 10 in a pressing deformation state in which the contact lens 18 is crushed in the axial direction to have a reduced height dimension. In the present invention, the flat state of the contact lens 18 on the lens mounting surface 22 refers to a mounting state in which the optical axis of the contact lens 18 is substantially orthogonal to the lens mounting surface 22. In particular, the flatly placed state of FIG. 2 in which the spherical concave surface (lens back surface) of the contact lens 18 opens toward the lens mounting surface 22 is more suitable, and positioning by contact of the edge portion of the contact lens 18 with the step 24 is performed. The effect is exhibited more effectively.

  As described above, the contact lens 18 is housed in a compressed state in which the contact lens 18 is pressed slightly in the optical axis direction, so that the contact lens is immersed in an uncompressed floating state (equilibrium state) and compared with a blister package having a conventional structure. Thus, the thickness dimension can be greatly reduced. In addition, since the contact lens 18 is placed and held on the retainer plate 16 having higher rigidity than the contact lens 18 and the first and second sheets 26 and 28, the contact lens 18 extends from the outside of the package exterior body 12. The contact lens 18 can be effectively protected from external force.

  Particularly in such a contact lens package 10, two contact lenses 18, 18 are accommodated in one package outer body 12 by skillfully using both surfaces of one retainer plate 16, and therefore Even if compared with the lens package structure in the compressed state described in the previous application (Patent Document 3) of the present applicant, further improvement in the accommodation efficiency of the contact lens 18 can be achieved.

  Further, in the contact lens package 10 of the present embodiment, the first and second of the package exterior body 12 with respect to the two contact lenses 18, 18 placed on the upper and lower lens placement surfaces 22, 22 of the retainer plate 16. The sheets 26 and 28 are directly overlapped with each other. Further, in addition to the tension of the first and second sheets 26 and 28, the atmospheric pressure exerted through the both sheets 26 and 28 is exerted as an axial pressing force on the contact lenses 18 and 18, respectively. As a result, the pressed and held state of the contact lenses 18 and 18 in the package can be maintained efficiently and stably. In particular, the positioning of the contact lens 18 on the lens mounting surface 22 can be satisfactorily realized also by the step 24 of the outer peripheral protrusion 20.

  Therefore, by peeling off the first sheet 26 from the second sheet 28 and opening it, the contact lens 18 exposed to the outside is positioned substantially at the center on the lens mounting surface 22, and the first lens 26 is opened. The extension tension and atmospheric pressure exerted on the sheet 26 can be released and the pressed state can be released. As a result, as shown in FIG. 3, the contact lens 18 can be restored to a substantially spherical crown shape relatively easily based on its own elasticity.

  However, depending on the material of the contact lens 18 and the storage solution 14 used, it may be difficult to restore the contact lens 18 to its original shape with no external force applied, but the contact lens user may wear it with fingers widened. Because it can, it will not be a big problem. In particular, since the contact lens 18 at the time of opening is placed on the rigid retainer plate 16, the contact lens 18 is easily picked and taken out on the retainer plate 16.

  As described above, according to the contact lens package 10 that can be provided to the market by superimposing the two contact lenses 18 and 18 in a very small thickness dimension, for example, a contact lens user can put in a pass case. It can be carried easily and safely, and a large number can be stacked and efficiently stored in a case such as a small box.

  In addition, when the package exterior body 12 configured by sealing the outer peripheral edge portion 30 by overlapping the soft first and second sheets 26 and 28 each having a film shape is used, It is also possible to open the package outer package 12 by cutting with fingers. In order to facilitate the operation of peeling the first sheet 26 from the second sheet 28 and opening it, at least a part of the outer peripheral edge portion 30 (for example, one corner in FIG. 1), It is also effective to provide an opening operation unit 32 in which the sheet 26 and the second sheet 28 are not bonded. Alternatively, the first sheet 26 and the second sheet 28 may be partially overlapped on the outer peripheral edge of the outer peripheral edge 30 to be opened simultaneously by tearing with fingers while the first sheet 26 and the second sheet 28 are overlapped.

  In the contact lens package 10 of the present embodiment, since the accommodation areas of the two contact lenses 18 and 18 are in communication with each other, it is desirable that the two contact lenses 18 and 18 are used at the same time. That is, in FIG. 3, the first sheet 26 is opened and one contact lens 18 is taken out, and after the user wears on one eye, the contact lens package 10 is reversed and the second sheet 28 is turned from the retainer plate 16. For example, when the other contact lens 18 is taken out and worn on the other eye by the user, the two contact lenses 18 and 18 can be used simultaneously.

  At that time, the two contact lenses 18 and 18 have the same geometric shape such as BC (base curve representing the radius of curvature of the concave lens surface), DIA (size representing the lens diameter), CT (lens center thickness), and the like. In addition, if the optical characteristics such as PWR (spherical lens power) set in the optical area of the central portion are the same, the two contact lenses 18 and 18 can be used without being distinguished from each other. it can. In this case, a user having the same correction power for the left and right eyes can wear and use the two contact lenses 18 and 18 simultaneously on the eyes without distinction between the left and right.

  On the other hand, in the case of contact lens users having different right and left correction lens powers, the right-eye contact lens 18 and the left-eye contact lens 18 are combined on both sides of the retainer plate 16 individually for each user. So that they can be used simultaneously. At that time, the basic curves (diametrical shapes) such as the base curve and DIA suitable for the left and right eyes are the same, and the right and left correction lens powers (spherical lens powers) are within ± 1.0D. In view of the statistical reason that there are many cases where they are different, the contact lenses 18 and 18 arranged on both sides of the retainer plate 16 are preliminarily different from each other in a mode in which the spherical lens power is varied within an appropriate numerical range of 1.0 D or less. It is also possible to prepare a plurality of types of combinations and select and provide an appropriate one according to the contact lens user.

  The first embodiment of the present invention has been described in detail above, but the present invention is limited only by the specific description in such an embodiment and the specific description in other embodiments additionally exemplified below. It is not interpreted. In the description of the embodiments described below, members and parts having the same structure as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment. , Omit their detailed description.

  4 to 5 show a contact lens package 40 as a second embodiment of the present invention. In the contact lens package 40 of the present embodiment, the outer peripheral portion of the retainer plate 42 is an extended plate portion 44 that extends outward from the storage region of the storage liquid 14.

  And the 1st sheet | seat 26 and the 2nd sheet | seat 28 are overlaid with respect to this extension board part 44 from both sides, and it preserve | saves by preserving fluid tightly by welding etc. in this overlapping part. Fourteen accommodation areas are sealed. In other words, in the present embodiment, the first and second sheets 26, 28 superimposed from both sides of the retainer plate 42 on which the contact lenses 18, 18 are placed on both sides are arranged on the lens placement surface 22. At the part that is off the outer peripheral side, it is overlapped with each other via the retainer plate 42 and fixed fluid tightly over the entire circumference in the circumferential direction.

  The retainer plate 42 is further outward from at least a part of the first and second sheets 26 and 28 (in this embodiment, both sides sandwiching the accommodation area of the contact lenses 18 and 18 in the radial direction). The knob 46 is exposed without being covered with the first and second sheets 26 and 28.

  Furthermore, the retainer plate 42 of the present embodiment is not formed with a communication hole, and is a first accommodation area 48 that is an accommodation area of one contact lens 18 and an accommodation area of the other contact lens 18. The second storage area 50 is fluid-tightly partitioned by the retainer plate 42 and is independent of each other.

  In the contact lens package 40 having such a structure, the extension plate portion 44 is integrally formed on the retainer plate 42, and the first and second sheets 26 and 28 are fixed to both surfaces of the extension plate portion 44. Is done. That is, the first and second seats 26 and 28 are fluid-tightly sealed with respect to the retainer plate 42 in a region where the first and second accommodation regions 48 and 50 are out of the outer peripheral side. Since the exterior body is configured, it is possible to improve the strength and sealing performance in the sealed portion. In addition, since the first sheet 26 and the second sheet 28 are easily peeled off from the extension plate portion 44 by picking the extension plate portion 44 with fingers, the operation at the time of use is also facilitated. In addition, in the present embodiment, the operation of opening the first sheet 26 and the second sheet 28 by peeling the first sheet 26 and the second sheet 28 by providing the knob 46 exposed from the first and second sheets 26 and 28. Can be performed more easily.

  In the contact lens package 40 of the present embodiment, the first and second accommodation regions 48 and 50 of the two contact lenses 18 and 18 are formed independently of each other, and only one of them can be opened. For this reason, for example, only one contact lens 18 side is opened and worn, and the other contact lens 18 is used later.

  Furthermore, since the first and second accommodation areas 48 and 50 of the two contact lenses 18 and 18 are formed independently of each other, only the first accommodation area 48 that is the accommodation area of one contact lens 18 is provided. The storage solution 14 and the contact lens 18 are received and sealed, and then the storage solution 14 and the contact lens 18 are stored and sealed in the second storage region 50 that is the storage region of the other contact lens 18. In combination with the shape retention effect of the retainer plate 16 having high rigidity, an improvement in the degree of freedom in setting the manufacturing process can be achieved.

  Next, FIG. 6 shows a contact lens package 60 as a third embodiment of the present invention. In the contact lens package 60 of the present embodiment, the retainer plate 62 is formed in cooperation with a pair of half plates 64a and 64b as first and second plates that are divided into two on both sides in the thickness direction. Yes. In the half plates 64 a and 64 b, the overlapping surface 66 is a flat surface, and the lens mounting surface 22 and the outer peripheral projection 20 are formed on the other surface. A contact lens 18 is placed.

  The pair of half plates 64 a and 64 b are overlapped on both side surfaces sandwiching the support sheet 68. That is, the overlapping surfaces 66 of the half plates 64a and 64b are fixed to both side surfaces of the support sheet 68 by welding or the like in a close contact state.

  Further, the support sheet 68 is provided so as to extend from the retainer plate 62 formed of the half plates 64a and 64b to the outer peripheral side, and the first sheet 26 and the second sheet 26 are formed from both sides with respect to the extension region 70. Sheets 28 are superposed. The first sheet 26 and the second sheet 28 are fluids with respect to the extension region 70 of the support sheet 68 over the entire circumference in the circumferential direction at a portion where the retainer plate 62 is removed from the outer circumferential side. It is firmly fixed. In the present embodiment, in the contact lens package 60 sealed in a fluid-tight manner, a region where one contact lens 18 is accommodated between the half plate 64 a and the first sheet 26 is a first accommodation region 72. An area where the other contact lens 18 is accommodated between the half plate 64 b and the second sheet 28 is a second accommodation area 74.

  Since the support sheet 68 is not required to be rigid like the retainer plate 62, the same material as the first and second sheets 26 and 28 can be used. For example, when adopting a laminate film, a laminate in which a CPP resin layer for heat welding is laminated on both side surfaces of an aluminum layer is suitable.

  In the contact lens package 60 of the present embodiment, as in the second embodiment, on both sides of the retainer plate 62, first and second storage areas 72, in which the contact lens 18 is stored together with the storage liquid 14, respectively. 74 may be formed as sealed areas that are independent of each other. In addition, since the sealing portion on the outer periphery of the retainer plate 62 is formed by the support sheet 68 that is thinner and softer than the retainer plate 62, it is possible to further reduce the thickness of the sealing portion.

  In the contact lens packages 40 and 60 of the second embodiment and the third embodiment described above, the first through hole is formed in the retainer plate 42, the retainer plate 62, and the support sheet 68. Similarly to the embodiment, the two regions containing the contact lens 18 and the storage solution 14 can be communicated with each other.

10, 40, 60: Contact lens package, 12: Package exterior body, 14: Storage solution, 16, 42, 62: Retainer plate, 18: Contact lens, 25: Communication hole, 26: First sheet (exterior sheet) 28: second sheet (exterior sheet), 48, 72: first accommodation area, 50, 74: second accommodation area, 64a: half plate (first plate), 64b: half plate ( Second plate), 68: Support sheet

Claims (11)

A contact lens package in which the contact lens is housed in a package outer package together with a storage solution,
A retainer plate having higher rigidity than any of the contact lens and the package exterior body is used, and the contact lens is placed in a flat state on both side surfaces of the retainer plate, and an exterior sheet is provided from both sides of the retainer plate. The package exterior body is configured by overlapping and sealing, and the two contact lenses are axially deformed and accommodated between the exterior plate and the exterior sheet on both sides of the retainer plate. Contact lens package. The first plate and the second plate are overlapped on both side surfaces of the support sheet, and the retainer plate is constituted by the first plate and the second plate,
The said exterior sheet | seat piled up on both sides of this support sheet is each fluid-tightly sealed by the area | region which remove | deviated this 1st plate and this 2nd plate in this support sheet to the outer peripheral side. The described contact lens package.   A first receiving region placed on the first plate and containing one of the two contact lenses; and a first receiving region placed on the second plate and containing the other of the two contact lenses. The contact lens package according to claim 2, wherein the two housing regions are formed fluid-tight independently of each other.   The outer sheet overlapped from both sides of the retainer plate is fluid-tightly sealed with each other in a region where the retainer plate is deviated to the outer peripheral side, so that the retainer plate is accommodated between the overlapping surfaces of the outer sheet. The contact lens package according to claim 1, wherein the package exterior body is configured.   The package exterior body is configured by fixing the exterior sheet superposed on both sides of the retainer plate in a fluid-tight manner to the retainer plate in an area outside the contact lens housing area on the outer peripheral side. The contact lens package according to claim 1.   The contact lens package according to claim 5, wherein an outer peripheral portion of the retainer plate extends outward from a fixing portion of the exterior sheet.   An area formed on one side of the retainer plate and accommodating one of the two contact lenses, and an area formed on the other side of the retainer plate and accommodating the other of the two contact lenses. The contact lens package according to any one of claims 1, 2, 4, 5, and 6, wherein a communication path is provided for connection to each other.   The contact lens package according to claim 7, wherein the communication path is formed by a communication hole formed through the retainer plate.   9. The contact lens package according to claim 1, wherein positioning retainers for engaging and positioning the contact lens are provided on both side surfaces of the retainer plate.   The contact lens package according to claim 1, wherein the two contact lenses disposed on both sides of the retainer plate are identical to each other.   The contact lens package according to claim 1, wherein the two contact lenses disposed on both sides of the retainer plate have different spherical lens powers of 1D or less.

Images