JP2002302179A - Composite package of contact lens, contact lens container (blister case) and opening method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a form of package wherein each of containers (blister case) having a contact lens preserved in an aseptic aqueous solution housed therein can be separated as an individual form out of a row combining the said containers. SOLUTION: A composite package including a row of containers is available for storing contact lenses simply and inexpensively for shipment and at the same time, a sealing sheet of the package can be easily unsealed by a patient. The package is simple and compact more than ever for supplying of the containers, and in this package, the remaining quantities of the contact lenses, namely the number of containers, can be ascertained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite package in which a plurality of containers such as blister cases adapted to contain a contact lens in a sterile aqueous solution are interconnected and wrapped together. More specifically, a plurality of containers are arranged in close contact with a part of a sealing sheet of a container for sealingly storing contact lenses, and a role as a wrapping paper so that the containers can be handled as one unit. Can be separated into each container along the line of weakness provided on the wrapping paper to make it a separate container, and the portion of the wrapping paper that adheres easily facilitates the sealing sheet that seals each container The present invention relates to a composite package having a role of providing a gripping portion that can be peeled off.

[0002]

2. Description of the Related Art A hydrated contact lens is stored in water until immediately before use and is distributed in an equilibrium hydrated state.
In the early days, stoppered glass or screw vials containing sterile saline soaked lenses were used as containers for storage and shipping of individual hydrophilic contact lenses. The glass bottle was sealed with a metal closure using an appropriate silicone stopper so that the stopper could not be easily removed during the distribution process. When the patient attempts to remove the contact lens from the vial, it is necessary to first peel off the metal closure, then remove the silicone stopper and use appropriate forceps or flush the contents. The removal will remove the contact lens from the bottle. This is an extremely complicated operation, and a metal closure may cut a finger. Even in the case of screw vials, it is difficult to turn the lid because the container is small,
Similarly, when removing contact lenses, you must use tweezers or the like, or flush out the contents,
At that time, it was difficult to use because the lens was accidentally washed away, or it could not be easily taken out while attached to the bottom of the bottle. Also, from the point of view of the selling company,
There is a problem that the cost of the method of sealing and the manufacturing cost of the container itself are increased, which affects the price of the contact lens as a product.

In recent years, a type in which a hydrophilic contact lens is disposable every day or about two weeks has been introduced to the market, and is stored in a form of a blister case having a hollow for holding the lens in a plastic substrate as a storage container for such a lens. Containers have been developed. This container has made it possible to store and ship the lens in a simple and inexpensive way, while allowing the patient to easily remove the lens.

[0004] Many applications for the invention relating to such a blister case have been filed, for example, Japanese Patent Publication No. 7-64365, Japanese Patent Application Laid-Open No. 7-322911, Japanese Patent Application Laid-Open No. 8-54824, and the like. JP-A-9-2391
No. 7, JP-A-9-24971, JP-A 9-1
69357 is known. Japanese Patent Publication No. 7-64365 and Japanese Patent Application Laid-Open No. 7-322911 relate to a molded blister case covered with a flexible sheet material that can be peeled off from a case to take out a lens. A recess for receiving the lens and sterile saline, and a flange extending outwardly from the periphery of the recess for sealing with a cover material. A flexible sealing sheet is adhered to the surface of the flange and seals the cavities in a leak-tight manner with common liquid sealing means (eg, heat or ultrasound). This recess has a part of its side wall inclined,
A slope extending upward from the bottom toward the flange is formed, and the sealing sheet can be easily removed by peeling off the sealing sheet from the flange and sliding the lens upward from the bottom along the inclined slope. Things.

[0005] Japanese Patent Application Laid-Open No. 8-54824 discloses a method in which a large number of plastic substrates of a blister case are arranged and connected to each other by a multi-layered laminated material forming a sealing sheet. Can be cut in the middle of each container along the line of weakness formed by the micropores that have been made, and by applying a printing pattern over the entire surface of the sheet covering a number of containers, the separation from the connecting rows Related to the printing of a specific pattern for the purpose of preventing diversion. Also, Japanese Patent Application Laid-Open No. 9-1693
No. 57 relates to a sealing sheet in which a sealing sheet for a blister case is formed from a transparent laminated plastic material so that a product can be visually confirmed from the outside or sterilized by ultraviolet rays or the like.

On the other hand, JP-A-9-23917 and JP-A-9-24971 relate to a composite packaging container which can be said to be a second package for accommodating a row of blister cases. The present invention relates to a packaging form in which a row of packages is contained in a container or a carton which is shaped like a box, and is supplied to the consumer in an amount sufficient to be used in a relatively short period of time.

As described above, according to the invention related to the blister case, the sealing sheet, and the package,
It has become possible to store and ship lenses in a simple and inexpensive way, while allowing the patient to easily remove the lenses. In addition, daily disposable lenses are usually discarded after being worn for one day, essentially 8 to 18 hours, and regular replacement lenses are placed in a separate storage container with proper care after one day of wearing. It is stored and discarded after a certain period. Therefore, by providing a package or package of lenses for a long period of time, such as days, weeks, or months, it is possible to give patients a measure of wearing and replenishing them over a period of time. Yes, in the prior art, this has been achieved in the form of providing a second packaging container for packing together the connected rows of blister cases described above. In addition, the conventional blister case is subjected to autoclave sterilization after sealing the lens, and in order to prevent the display from being disturbed due to heating, after the sterilization processing, information on the lens to be stored is stuck on the surface of each case for each case. Then, a predetermined quantity is packaged together, stored in a box-shaped container or carton, and supplied as one pack.

However, since the sealing sheet for sealing the blister case has a strong adhesion to the case so as to withstand later sterilization treatment, excessive force is applied when opening the sealing sheet to spill the internal solution. There were quite a few problems, such as the lens popping out. In addition, since the package supplied as a unit is separated for each blister case in the course of use, it is necessary to consider the shape of the entire package in use and its disposal. further,
In order to remove contact lenses, it is common to remove the sheet so that the sealing sheet is not in close contact and peel it off the case, and then open the blister case. The area to be picked has a small area, and the sheet is thin and flexible, so that there is a problem that it is difficult to grip.

Further, since the sealing sheet for sealing the hollow is the weakest in strength as a container, a pinhole or the like is inadvertently formed by physical stimulus from the outside, and the sealed state (that is, the sterile state) is broken. There was also a problem such as being done.

[0010]

SUMMARY OF THE INVENTION The present invention provides a more compact and simpler packaging configuration for the supply of a plurality of containers (blister cases), wherein the patient knows exactly the remaining amount of lenses, that is, the number of blister cases. It is an object of the present invention to provide a composite package capable of performing such operations.

Another object of the present invention is to reinforce the sealing sheet for sealing each container (blister case) so as not to be easily broken, while opening the sheet at the time of use. The purpose is to provide a gripping part that can be easily made.

[0012]

To achieve the above object, a composite package of a contact lens container (blister case) according to the present invention is characterized by the following constitution. That is, in a composite package for storing one row of containers (blister cases) for storing contact lenses in a sterile aqueous solution, each of the containers forming one row is formed of a plurality of molded articles each having a recess for holding a contact lens. A plastic substrate having a flange extending in a plane on the outer periphery of the cavity, and a container accommodating a contact lens in the cavity and sealing the cavity with a sealing sheet. Forming a composite package consisting of a package that is arranged in a row and is superimposed around the group as a set to package the entire package, and the composite package is separated into segments of the individual containers constituting the package. It is characterized by being able to.

In another preferred embodiment of the present invention, the container abuts around the open end of the recess capable of receiving a contact lens and a solution for storing the contact lens. A resin cover that covers the cover, and is sealed with a sealing sheet from above the cover. In the container, a resin cover is provided so as to have a reinforcing effect of the sealing sheet, and the resin cover is also part of the resin cover so that the resin cover can be peeled off together with the sealing sheet when opened. And is adhered.

In another preferred aspect of the present invention, a part of the paper package is separated into segments of each container while being adhered to a holding portion of a sealing sheet for sealing the container, By gripping the sealing sheet together with a part of the paper package, the sealing sheet can be easily separated so that the stored contact lens can be accessed.

According to the present invention having the above structure, the composite package has a structure in which one row of containers (blister cases) each containing a hydrophilic contact lens is connected and the whole package is packaged. Thereby, the rows are united into a compact shape, and after the specified number of lenses have been delivered to the patient, a comfortable container can be easily taken out and stored safely until use. Also,
When peeling off the sealing sheet from the container, a grip portion having a sufficient area is secured without requiring a particularly large force.

Each container is made of a molded plastic substrate having a hemispherical cavity, and is generally made of a polyolefin-based thermoplastic resin such as polypropylene by injection molding or thermocompression molding. There is a flange extending in the outer peripheral direction around the recess for accommodating the lens, and the recess is provided at the center portion of the flange when the package is not stacked. In the conventional blister case, the positions of the depressions are shifted toward one end of the flange. It is arranged with the joined rows superimposed in a second packaging container or carton, so that each successive superimposed row is arranged with the previously laid row above the indentation. The rows placed on top of each other are shifted downward so that the recesses of the upper and lower rows are positioned on flanges where there are no recesses, so that the stacked form can be easily retained. . In some cases, rows in which the flat flange portions are connected in a triangular shape are arranged such that the respective blister cases are arranged in opposite directions to each other, and the recesses are nested to support each other. As described above, in consideration of superimposing the rows of containers, it is better to shift the positions of the depressions toward the end so that the form when superimposed is small, but one row of the containers is planarly arranged. When packaging is considered, it is desirable to form a depression at the center position of the flange in order to improve the strength unevenness of the packaging material. Furthermore, in order to prevent the package from being easily torn by the impact of the outside during transportation or handling, or to separate the containers, a peripheral wall with the same height as the hollow is formed downward on the outer periphery of each flange. It is desirable to improve the shape retention of the entire package due to the contact of the peripheral wall.

The cavity of the container (blister case) of the present invention may be a single pliable piece of laminate made of aluminum foil with polypropylene or other suitable plastic film, or silicon oxide forming a barrier material with a plastic layer. It is covered with a sealing sheet. The sealing sheet is heat sealed around the indentation to provide a sealed environment for each lens held in the indentation. Since the sealing sheet is in the form of a flexible film, the sealing sheet is apt to be broken or pinholes formed by careless external impact during handling when covering the recessed opening.
Therefore, in the present invention, it is preferable to adopt a structure in which the recess opening is simply covered with a resin cover and is supported from the inner surface of the sealing sheet. The resin cover can also serve as a reinforcing effect of the sealing sheet when transporting and storing the package, and also as a lid for a simple storage case of the storage lens after opening the sheet.

When a resin cover for covering the opening of the recess is used, it is desirable that the sealing sheet be peeled off and attached to the sheet at the same time as the cover is detached so that the recess is opened. . Therefore, it is necessary that the cover and the sealing sheet are bonded at least in part. In this case, the entire top surface of the cover may be adhered to the sealing sheet. However, since the sealing sheet is also adhered to the flange portion of the container (around the recess opening), when the sheet is peeled off, the conventional method is used. Greater power is needed. In other words, since the resin cover does not bend like a sealing sheet, not only the force to peel off the flange part until the middle of opening, but also the part bonded to the resin cover will be peeled off It is. Therefore, in the present invention, the container having such a resin cover can be opened with the same force as in the conventional blister case. The resin cover and the sealing sheet were not bonded, but were bonded at the end of opening. With such an arrangement of the adhesive regions, the sealing sheet can be easily peeled off with the same force as before, and the resin cover can be peeled off at the time of opening the sealing sheet. It is.

Each of these containers is a composite package that is packaged in a single row, and a part of the package adhered to the sealing sheet of each case when taken out as a segment of the individual container that constitutes the composite package. The package is formed with a separable weakening line such that the package is left on the case side. In the conventional composite package, a predetermined number of containers are housed, and a necessary container is taken out of the package and the lens is taken out after peeling off the sealing sheet when used, but in the present invention, the package is used as described above. Is separated from the sealing sheet of each container by bonding, so that the sealing sheet can be easily peeled off by grasping the relevant portion. Further, as another aspect, when the container is separated, by configuring so that the size of the entire package is sequentially reduced, the volume of the entire package is minimized, and the number of remaining lenses can be easily confirmed. The user can be encouraged to periodically replenish the lens.

On the other hand, the indication such as the standard of the contact lens housed in the container may be printed directly on the peripheral wall portion or the flange portion of the container, or may be printed on the package and displayed. . Compared to the method of pasting the information on the lenses to be stored one by one in the container as a seal, it is also possible to directly paste or print in a package unit, thereby reducing the manufacturing cost. On the surface of the package, information such as a standard and a lot concerning a lens to be stored is described, and the package can be printed so as to be recognized even in the state of individual containers separated from the composite package. The sealing sheet may be deformed or discolored when it is sealed around the dent by heat or ultrasonic bonding, or may be deformed or discolored due to the heat and pressure applied during the sterilization process. In such a case, there is a possibility that the display of the product is difficult to determine. However, by leaving a part of the package on the sealing sheet of the container as in the present invention and displaying the above information at the remaining portion, the package may be affected by heat or the like that the sealing sheet receives. And there is an advantage that good display is maintained.

In the above description, the case where the sealing sheet of each container and the package for wrapping the whole container are separately constituted is mainly exemplified, but the package itself also functions as the sealing sheet of the container. Things are also possible. That is, after the lenses are housed in a plurality of containers, the specified number is arranged in a line, and at least the portion covering the recess is formed by laminating a polypropylene or other suitable plastic film and aluminum foil, or forming a barrier material having a plastic layer. In such a way that a single flexible sealing sheet made of silicon oxide is disposed, the recess is sealed by sealing the portion by heat or ultrasonic waves, and the sealing sheet is further sealed with a container. It is extended so as to cover the whole row, and the whole is made into one package.
In this case, the package can be provided with a weakening line so that it can be separated for each container, and can be taken out when necessary. As described above, by also using the entire package, an extra step in packaging can be omitted, and the size of the entire package decreases with use, so that the user can recognize the number of remaining lenses at a glance. The lens can be regularly replenished. Further, since the area other than the area in which the recess is sealed is the grippable portion of the sealing sheet, the area is wider than that of the conventional case, and the opening operation becomes easier.

The packaging unit of the composite package of the present invention can include any practical number of lenses used by the patient, for example,
If it is a lens that can be disposable in one month, it can be packaged for three to four months, and the number of lenses provided can be considered depending on how the lens is used. If you pack up for 30 months, you have to put together 30 blister cases,
It is not practical to adopt a structure in which the blister case is detached from the composite package each time it is used, and it is appropriate to package the composite package of the present invention preferably in a number of 10 or less, more preferably 4 or less.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a composite package constituted according to the present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 shows a perspective view of a composite package 1 in which three containers (blister cases) are packed in an interconnected row. The composite package 1 shown in FIG. 2 is a package in which the entire package is made of paper, and the lid 2 is opened. The package was closed with the container housing 9 and the lid 2 adhered to each other.
The three pieces, which are peeled off from the container housing portion 9 while being adhered to the inner surface side of the lid portion 2, are shown.
As the lid 2 is opened, a corresponding window 4 is formed on the upper surface of the container housing 9 from which the pieces 3 have been removed, and it can be visually confirmed whether or not the container is housed. As shown in more detail in FIG. 3, each container 10 has a planar, essentially square flange 11 and a peripheral wall 12 depending therearound.
And a recess 13 is provided at a substantially central portion of the flange 11. The container 10 forms a sealed space for a contact lens housed inside the recess by a sealing sheet 14 covering the periphery of the recess 13 of the flange 11. The sealing sheet 14 of each container covers the recess 13 and the flange 11 and is glued and fixed at the extended end at the location 5 of the package. FIG. 4 is a development view of the package 1 showing an adhesion portion between the container and the package.
It is. From this figure, it can be seen that the package is made of one sheet of paper, and when assembled, forms a rectangular parallelepiped package 1 as shown in FIG. A window 4 is already formed in the developed view of this package, and the piece located at that position is adhered to the inner surface of the lid 2 as a part 3, but before assembly of the package, the window 4 The pieces 3 are connected to each other by a weakening line. The storage area 9 of the container is formed by the area indicated by 9 in FIG. 4, and the lid 2 and the piece 3 corresponding to the window 4 of the storage area 9 are adhered to form a rectangular parallelepiped package.

FIG. 2 shows a weakening line 6 in the case accommodating portion 9 so that the containers can be separated from each other. The user simultaneously grasps and pulls the sealing sheet 14 of the container to be adhered to the part 5 of the package,
The container can be pulled out by separating the weakening line 6 from the package body (see FIG. 3). A locking portion 7 is formed on the lid 2 so that it can be temporarily temporarily fixed for the purpose of, for example, protecting the remaining case after opening the package from dirt such as dust, and the upper surface of the corresponding case storage portion 9. Break 8
Is provided. Note that the locking portion and the like can have any different shape depending on the shape of the lid portion 2. For example, the locking portion 7 is inserted into the window portion 4 and locked, or the locking portion is formed by extending both ends of the lid portion 2 and the locking portion is inserted into the storage portion from the end of the case storage portion. And how to do it. Alternatively, the lid 2 and the case housing 9 may be temporarily bonded by bonding them with a re-adhesive adhesive.

FIG. 3 shows a state where the container 10 is pulled out of the package 1. The user takes out the container by separating the package by the required number of lenses. At this time, a part of the paper package (indicated by 5) is still attached to the sealing sheet 14 of the container 10 in a shape as shown in the figure. The advantage of the attachment portion 5 will be described later. Container 10
Has an indentation 13 that is generally hemispherical in shape with a curvature greater than the curvature of the contact lens contained therein, and is sealed with sterile saline for immersing the contact lens. The attachment position is flange 11
In this case, a sufficient sealing area can be provided at any position around the recess opening. Of course, there is no problem in handling even if it is not necessarily positioned at the center, but when the composite package is formed by combining containers in a horizontal line as in this example, it is necessary to reduce the overall volume. Most conveniently, the flange of the container is square. Also, when trying to maintain the form of the paper package without putting it in a sturdy outer box, consider the unexpected impact during transportation, etc.
It is desirable that the recess be located at the center also from the reinforcing surface of the package that covers the back side of the container. Further, from the stability when the container 10 is left standing, the height of the peripheral wall portion 12 hanging down from the flat flange 11 is set substantially equal to the height of the recess 13 for accommodating the contact lens.

From the composite package 1 as shown in FIG.
FIG. 5 shows a method of opening the sealing sheet 14 after the container 10 is taken out. The sealing sheet 14 is adhered to an appropriate area (at least to seal the recess) on the surface of the flange 11 facing the sealing sheet by a sealing means such as heat or ultrasonic waves. Blister cases that are currently in general distribution are difficult to grip because the area is small and the thickness of the sealing sheet itself is thin and soft because the case is opened by grasping the part where the sealing sheet is not bonded. Alternatively, there is a problem that excessive force is applied when the sheet is peeled off, and the internal solution is spilled due to a recoil at the time of opening. In the present invention, the part 15 of the paper package adhered is folded as shown in the figure to overlap the part 5, and the thickness of two paper packages and the large gripping area make it easy to grip, so that the sealing is achieved. When the sheet 14 is peeled off from the case 10 together with the end 16 of the sheet 14, the force can be adjusted appropriately and the sheet 14 can be easily peeled off.

FIG. 5 shows the peripheral wall 12 ′ of the container.
Is a rectangular wall formed entirely of plastic resin, whereas the peripheral wall 12 has a rectangular cutout. The reason for this is that when the end portion 16 of the sealing sheet 14 and the portion 5 of the package are bonded together, they are pressed so as to be sufficiently bonded. On the other hand, the peripheral wall portion 12 having the cutout portion is formed by stacking the cases and performing steam sterilization. This is because, when the treatment is performed, a ventilating portion is provided so that the steam spreads over the entire case to obtain a uniform sterilization effect. The peripheral wall portion of the container does not necessarily need to have such a shape, but by giving the shape as exemplified in the present example, the above-described effect can be obtained.

On the other hand, FIG. 6 shows a container having a resin cover 18 which abuts around the opening end of the recess and covers the recess. This resin cover serves to reinforce the sealing sheet covering the recess opening from the inside. As the package material is simplified and the thickness of the wrapping paper becomes thinner, the influence on external physical stimuli or the like acting on the sheet surface of the recess opening during storage and transport of the package becomes larger (for example, a part of the sheet). Cracks, etc., which make it impossible to maintain an aseptic condition), which is an effective means for avoiding such a problem. When the container is used for primary storage after taking out the lens from the inside of the case, by using this resin cover as a simple lid, it can be used when the lens is removed. .

For example, a through-hole may be formed in the resin cover. When such a through-hole is filled with a preservation solution such as physiological saline through the hole after storing the lens in the recess, by using a liquid filling nozzle having substantially the same outer diameter as the hole diameter, the filling is performed at the time of filling. The liquid can be prevented from leaking to other places. It seems that the same effect (liquid leakage, etc.) as described above would be obtained if the same nozzle as the hollow opening diameter is used. In that case, however, the nozzle outer diameter becomes large, and the liquid shortage after filling becomes worse. Undesirable results can occur.

The problem with the provision of such a resin cover is that, in the prior art, the lens in the container could be easily accessed by peeling off the sealing sheet, but this resin cover was not removed. And the lens cannot be taken out. In this regard, the present invention can be solved by adopting a configuration in which the cover is removed at the same time as the sheet is peeled off by bonding a part of the resin cover to the sealing sheet as disclosed in the present invention. However, it is preferable that the bonding area be as shown by the hatched portion in FIG. 7 rather than simply bonding the upper surface of the cover and the sheet. FIG.
Indicates the opening direction by an arrow, and the outer annular hatched portion indicates a region bonded to the container flange portion for sealing the recess. When the sheet is peeled in this direction, the opening start side (A) does not bond the sheet and the cover, and the opening end side (B) is bonded to the sheet, so that easy opening is possible. If the upper surface of the resin cover is uniformly adhered to the whole, in the first half of opening the sealing sheet, the resin cover cannot be bent and therefore cannot follow the sheet, so that not only the ring portion but also the ring portion is removed, It must be peeled off to the area where it adheres to the resin cover. Since such extra force is required, it is better not to bond the portion. Further, in the latter half of opening, even if the cover does not bend, the sheet can follow the adhered sheet and can be removed together with the sheet (the movement of the sheet and the cover during this time is shown in FIG. Pointing out toungue).

The resin cover may be further provided with an annular ridge on the periphery and a groove formed around the open end of the recess, so that the cover can be engaged with the ridge of the cover.

FIG. 9 shows an example in which the weakening line 22 is formed over the entire circumference of the wrapping paper 21 when separating the container comprising the composite package 20. This package is characterized in that the volume of the entire package is reduced each time the constituent containers are separated, and the volume is always the minimum required. Also, as shown in FIG.
It is also possible to form a window portion 23 on the side surface of the container so that the two-dimensional code 24 or the lens standard 25 printed directly on the side wall of the container can be confirmed through the window. A similar display window may be provided in the composite package 1 of FIG. Of course, there is no problem even if these displays are displayed on the top surface or other side surfaces of the wrapping paper 21 by printing or the like. FIG. 10 is a diagram showing how to open the sealing sheet 34 from the container 20 after separating the container 30 from the package 20. Wrapping paper 2
A part of the sealing sheet 34 is partially adhered to the sealing sheet 34 by a hatched portion 31 and any part of the wrapping paper to be adhered can be gripped, so that the sealing sheet 34 can be easily opened.

The plastic substrate of the container shown in FIG. 5, 6 or 10 is made of, for example, polyethylene, by general injection molding or hot compression molding so as to be inexpensive and easy to handle.
It is composed of a thermoplastic material appropriately selected from polypropylene, ethylene vinyl acetate, propylene copolymer, polystyrene, nylon and the like. Therefore, the sealing sheet 14 or 34 is made of an aluminum foil having a material similar to a plastic substrate such as polyethylene or polypropylene on its surface so as to provide good adhesion to the flange by the heat seal or the adhesive as described above. Other materials comprised of silicon oxide forming a barrier material with a laminate or plastic layer can be used. The resin cover 18 may be selected from the same material as the plastic substrate, or a different resin may be selected. On the package, the company name, lens name, standard, lot,
Or, a description, advertisement, decoration, etc. is displayed,
These pieces of print information may be printed directly on the side surface of each container or the sealing sheet. When printing directly on each container or sealing sheet, it is desirable to use a printing method in which the display is not discolored by the influence of heat, pressure or the like applied in the subsequent sterilization treatment.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood that the invention is not limited by the foregoing embodiments. In addition, it is understood that the present invention can be variously modified, modified, improved, and the like based on the knowledge of those skilled in the art without departing from the spirit of the present invention, in addition to the above specific description. Should.

[0036]

As described above, according to the composite package for storing a row of packaging containers for storing contact lenses in a sterile aqueous solution according to the present invention, the lenses can be stored in a simple and inexpensive packaging form. It is possible to ship,
On the other hand, the user can easily open the container (blister case). In addition, it is possible to provide a packaging form that is more compact and simpler in the supply of containers, and that can accurately know the number of lenses, that is, the number of containers. In addition, a method for opening the sealing sheet by a simple operation was provided, having a gripping portion capable of easily peeling off the sealing sheet for sealing the container.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a composite package according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a lid of the composite package of FIG. 1 is opened.

FIG. 3 is a perspective view showing a state where a container is taken out of the composite package of FIG. 1;

FIG. 4 is a development view of a composite package.

FIG. 5 is a perspective view showing an opening operation of the container.

FIG. 6 is a developed view when the container of FIG. 5 is further provided with a resin cover.

FIG. 7 is a diagram showing an adhesion region between a sealing sheet, a flange, and a resin cover.

FIG. 8 is a schematic diagram when the sealing sheet is peeled off.

FIG. 9 is a perspective view showing a composite package according to another embodiment of the present invention.

FIG. 10 is a perspective view showing the unsealing operation by separating the container shown in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 20 Composite package 2 Lid part 4 Window part 6, 22 Weak line 7 Locking part 8 Cut 9 Container storage part 10 Container 11 Flange 12, 12 'Peripheral wall part 13 Depression 14, 34 Sealing sheet 18 Resin cover 24 2 Dimension code

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 81/20 B65D 81/22 81/22 G02C 13/00 G02C 13/00 B65D 85/38 BF term ( Reference) 2H006 DA08 3E067 AA13 AB95 AC04 BA06C BA25B BB01C BB12B BB14B BB15B BB16B BB25B BC06B BC06C CA04 EA05 EA06 EA15 EA31 EB11 EB21 EC33 EE02 EE18 EE21 EE38 EE02 FA04 FB02A04 EA01X EA02X FA12 FA18 FA27 FA40 GA05 GA07

Claims (7)

[Claims] 1. A composite package for storing one row of containers (blister cases) for storing contact lenses in a sterile aqueous solution, wherein each of the containers forming one row has a plurality of depressions for holding contact lenses. A molded plastic substrate, comprising a substrate having a flange extending in a plane on the outer periphery of the recess, a container containing a contact lens in the recess and sealing the recess with a sealing sheet, these Are arranged side by side in a row to form a set, and a composite package consisting of a package that is superimposed around the set and wraps the entire package is formed, and the composite package is formed into segments of the individual containers constituting the composite package. A composite package characterized by being separable. 2. The container according to claim 1, wherein the container has a contact lens and a resin cover that covers and covers the recess around the open end of the recess capable of receiving the solution for storing the contact lens. 2. The composite package according to claim 1, wherein the container is sealed by a sealing sheet from above the cover, and the container is stored. 3. The container according to claim 2, wherein the sealing sheet seals around the opening of the recess, and is further adhered to a part of the surface of the resin cover inside the sealing sheet. 3. The composite package according to claim 2, wherein the container stores the container. 4. The container according to claim 1, wherein an adhesive surface between the sealing sheet and the resin cover does not adhere to the opening side of the sealing sheet in the opening direction of the sealing sheet but adheres to an opening end side. The composite package according to claim 2 or 3, wherein 5. The package is made of paper, and a part of the paper package is separated into segments of each container while being adhered to a sealing sheet for sealing the container,
5. The composite package according to claim 1, wherein the sealing sheet is easily detachable by providing a grip for accessing the accommodated contact lens. 6. The composite package according to claim 5, wherein a part of the paper package is separated while being bonded to a sealing sheet for sealing the container, and a part of the paper package is bonded. A method for unsealing a container, comprising: gripping a portion of a stop sheet to separate a sealing sheet so as to access a stored contact lens. 7. The opening method according to claim 6, wherein, in the separation of the sealing sheet according to claim 6, when holding, the paper package remaining after being adhered is folded in two.