TWI737922B - Blister container for ring-shaped device - Google Patents

Abstract

An object of the invention is to provide a blister container for ring-shaped devices which when transporting ring-shaped devices that have an opening at the center, offers excellent positional stability and shape retention capabilities. This object is achieved by using a blister container for ring-shaped devices comprising (a) a concave container section containing a storage liquid and a ring-shaped device immersed in the storage liquid, (b) a rectangular flange section formed around the circumference of the container section, (c) an inclined support section provided so as to extend at an incline from one of the short side ends of the flange section to below the base section of the container, (d) a horn-shaped support section provided on the other short side end of the flange section so as to extend to below the base section of the container, (e) a lid section which covers the container, (f) a protruding support section which is provided on the base section of the container, contacts the ring-shaped device, and has such height that the apex passes through the opening in the ring-shaped device and reaches the vicinity of the lid section.

Description

Cover plate container for ring element

[Cross Reference of Related Patent Applications]

This patent application also claims the priority of Japanese Patent Application No. 2017-135403 filed on July 11, 2017, and all the descriptions thereof are hereby used for disclosure.

The present invention relates to a cover plate container for ring-shaped components having an opening at the center.

As an element that efficiently delivers drugs to diseases of the retina, choroid, sclera, lens and other ocular tissues, there is known a ring element having an opening in the center (refer to Patent Document 1 below, all of the documents The record of is used here as a disclosure). Because the ring element contains the drug, it can effectively complete the delivery of the drug to the posterior ocular tissue by being worn on the surface of the sclera, and its effect is greater than that of wearing the drug-containing element on ordinary contact lenses. .

On the other hand, as a cover plate container that takes into consideration the stability of the storage of normal contact lenses and the removability during use, a cover plate container is disclosed (refer to Patent Document 2 below. The entire description of this document is As used herein as the disclosure), the cover plate container is formed by setting the inclined bottom surface in the lens receiving portion of the container body closed by the cover sheet, and forming a protrusion on the inclined bottom surface to cover the contact lens. [Prior Patent Document] [Patent Document]

[Patent Document 1] International Publication No. 2010/092735 [Patent Document 2] JP 2016-221059 A

However, the ring element described in Patent Document 1 has an opening at the center, so its shape retention is inferior to that of contact lenses. Due to external factors such as vibration or impact during transportation, reversal or twisting is likely to occur . If you continue to store it in a state where it is still reversed or twisted, it may become unusable due to poor shape. In addition, there is a possibility of damage when it is corrected to a normal shape.

In the transfer of this kind of ring element, in the case of using a cover plate container generally used for the transfer of contact lenses, because the volume of the storage part of the ring element is large, the shape caused by the vibration or impact during storage The abnormality is prone to occur.

In the cover plate container for contact lenses of Patent Document 2, the gap between the protruding portion and the lid portion is large. When the ring element is stored, the ring element may pass through the gap, which is not suitable for storing the ring element. There are problems with position stability and shape retention.

Therefore, an object of the present invention is to provide a cover plate container for ring-shaped components, which can have excellent position stability and shape retention when transferring ring-shaped components with an opening in the center. sex.

In reviewing the means or methods for solving the above-mentioned problems, the inventors of this case not only focused on the structure of the gap between the holding portion and the cover portion formed at the bottom of the ring-shaped element storage portion, but also focused on the structure of the ring-shaped element. The volume of the storage section. It is also considered whether it is possible to minimize the gap between the holding portion and the cover and minimize the volume of the receiving portion by the structure of the ring-shaped element holding portion.

Based on the above thoughts, the inventors of the present invention conducted more intently review. By making the structure of the ring-shaped element holding portion close to the cover portion, the movable space of the ring-shaped element in the receiving portion can be narrowed. The movement of the ring element in the storage portion is suppressed, and the occurrence of reversal or twisting of the ring element during transfer can be greatly reduced, and an attempt has been made to develop a cover plate container for ring elements. As a result, successfully created a cover plate container for ring-shaped components, the cover plate container for ring-shaped components is attached to the inner surface of the ring-shaped component holding portion and the inner surface of the ring-shaped component provided at the bottom of the storage portion for accommodating the ring-shaped component Contact, and have a height close to the cover. The present invention is based on these knowledge or successful examples.

That is, according to one aspect of the present invention, there is provided a cover plate container for ring-shaped components, including: (a) a receiving portion for accommodating a storage solution and a ring-shaped component immersed in the storage solution; (b) a rectangular flange Section, formed around the receiving section; (c) an inclined support section, extending obliquely from one of the short side ends of the flange section to the bottom side of the receiving section; (d) An angular support portion extending from the periphery of the other short side end of the flange portion toward the bottom side of the receiving portion; (e) a cover portion covering the receiving portion; and (f) a convex shape The holding part is arranged at the bottom of the receiving part, is in contact with the ring element, and the topmost part penetrates the opening part of the ring element, and has a height close to the cover part.

The height of the holding part is preferably formed at a ratio of 90-100% relative to the height of the receiving part.

The volume of the holding portion is preferably formed at a ratio of 50% to 80% of the volume of the receiving portion.

According to the cover container for ring-shaped components according to one aspect of the present invention, since the movement of the stored ring-shaped components in the accommodating portion is suppressed, the occurrence of reversal or twisting can be reduced. The ring-shaped element transferred by using the container is not prone to shape abnormalities such as reversal or twisting, so that shape defects caused by the continuous abnormal shape state can be prevented. Furthermore, since the correction from the abnormal shape to the normal shape is not required, damage that is likely to occur during correction can also be reduced.

1: Storage department

2: Flange

3: Inclined support part

4: Angular support part

5: Lid

6: Holding part

7: The deepest part of the storage department

8: The top of the holding part

X: Height of holding part

Y: Height of storage section

Z: Gap between holding part and cover part

A: Storage volume

B: Holding part volume

m: Height of tilt support

n: height of angular support

Fig. 1 is a cross-sectional view and a plan view showing a cover plate container for ring-shaped elements according to the first aspect of the present invention.

Fig. 2 is an enlarged cross-sectional view showing the cover plate container for ring-shaped elements according to the first aspect of the present invention.

Fig. 3 is a perspective view of a cover plate container for ring-shaped components according to the first aspect of the present invention.

Fig. 4 is a cross-sectional view and a plan view showing a cover plate container for ring-shaped elements according to a second aspect of the present invention.

Fig. 5 is a perspective view of a cover plate container for ring-shaped components according to a second aspect of the present invention.

Hereinafter, the details of the cover plate container for ring elements of the present invention will be described. However, the technical scope of the present invention is not limited only by the content of this item. The present invention can take various forms as long as its purpose is achieved.

The cover plate container for ring-shaped components according to one aspect of the present invention includes at least the following (a) to (f) (a) receiving portions, which accommodate the storage solution and the ring-shaped components immersed in the storage solution; b) A rectangular flange portion formed around the receiving portion; (c) An inclined support portion extending obliquely from the short side end of one side of the flange to the bottom side of the receiving portion; (d) An angular support portion extending from the periphery of the other short side end of the flange portion toward the bottom side of the receiving portion; (e) a cover portion covering the receiving portion; and (f) a convex holding portion , Arranged at the bottom of the receiving part, in contact with the ring element, and the topmost part penetrates the opening of the ring element, and has a height close to the cover part. This contributes to a cover plate container that greatly reduces the occurrence of reversal or twisting of the ring-shaped elements stored during transfer.

The cover plate container for ring-shaped components is a cover plate container used to store ring-shaped components. The cover part covering the storage part and the holding part provided in the storage part can stably hold the ring-shaped element without reversing or twisting.

The accommodating part is formed to have a bottom and an opening that opens upward, and has a predetermined volume capable of accommodating the ring-shaped element and its storage liquid.

The flange part is formed so as to expand from the opening part of the storage part to the outer periphery, and has a rectangular shape. The flange includes short side ends of one side and the other side, and long side ends of one side and the other side. From the vicinity of the short side end of one of the flanges to the vicinity of the center, the bottom of the storage section is provided.

The inclined support portion is located at the short side end portion of one side of the flange portion, and is provided so as to extend obliquely in the same direction as the bottom side direction of the storage portion, that is, the downward direction.

The angular support portion is an angular shape extending downward in the same direction as the bottom side of the accommodating portion on the periphery of the short side end of the other side of the flange portion.

The cover part is sealed by welding the cover part and the volume body by the flange part enlarged around the outer side of the storage part.

The holding part is the mounting part of the ring element, and protrudes from the bottom of the receiving part to the upper side of the opening part, and is close to the extent of contact with the cover part, and is provided in a convex shape, the convex shape It has a height that can also be in contact with the cover. The top of the protrusion of the holding portion is formed to pass through the opening of the ring element when the ring element is received, and is formed to have a shape along the surface of the ring element, preferably along the inside of the ring element The shape of the face. The "inner surface of the ring element" in this patent specification means the surface where the ring element contacts the sclera surface side of the eye.

In the following, in order to more specifically understand the present invention, referring to FIGS. 1 to 5, a detailed description will be made at the same time. In addition, in the following description, the up-down direction means the up-down direction in FIG. 1 which is set to the up-down direction when the lid of the container is opened.

[Shape of cover plate container for ring components]

The cover plate container for ring-shaped components has a rectangular flange portion 2 as a base, and further includes a container body and a lid composed of a receiving portion 1, an inclined support portion 3, and an angular support portion 4 having a holding portion 6 The cover part 5 is fused to the container body at the flange part 2 so as to seal the contents of the storage part (Fig. 1, Fig. 4).

In the cover plate container for ring-shaped components, the storage portion 1 is a concave shape provided downward from the vicinity of the short side end of one of the flange portions 2, and is formed to have a predetermined volume A for accommodating the ring-shaped component and its storage solution (figure 2). Furthermore, by providing the holding portion 6 protruding upward at the bottom of the accommodating portion 1, the ring-shaped element penetrates into the holding portion 6 and is internally connected, so that it can be held stably. Here, the bottom of the accommodating portion 1 has the deepest portion 7 swelled and can be used as the holding portion 6.

The shape of the holding portion 6 is not particularly limited as long as it continuously bulges upward from the deepest portion 7 of the accommodating portion 1. For example, hemispherical, cubic, rectangular, cylindrical, pyramidal, and truncated cone shapes can be used. In addition, a combination of these shapes can be used (Figure 2 and Figure 4). At this time, when storing or taking out the ring-shaped component placed on the holding portion 6, in order to prevent damage to the inner contact surface of the ring-shaped component, the surface of the holding portion 6 is chamfered so that it does not have The corners are better. The width of the holding portion 6 is such that the top 8 of the holding portion is formed as an opening through the ring element, and the width of the opening of the ring element abuts against the surface of the holding portion 6, and is set as a pair of ring elements The locking effect can limit the amount of free displacement within the storage portion volume A of the storage portion 1.

Here, the ring-shaped element accommodated in the accommodating portion 1 of the cover plate container is, for example, a circular shape with a center opening, and it is not particularly limited as long as it can be worn without hindrance and can cover the surface of the sclera. The outer diameter of the ring element is from the viewpoint of insertability on the eyeball, wearability, and covering of the scleral surface. It is preferably about 16-20 mm, and more preferably 18-20 mm. On the other hand, the inner diameter of the ring element (the width of the opening) is to prevent the inner edge of the ring element from contacting the cornea, preferably about 10-15 mm. The ring element is not limited to the direction in which the storage portion 1 is stored. The ring element is preferably immersed in the preservation solution with the inner surface of the side in contact with the scleral surface facing the lower side. By accommodating the inner surface of the ring element toward the lower side of the accommodating portion, since the user does not touch the inner surface when the user picks up the ring element with his fingers, contamination can be prevented. In addition, the storage liquid is not particularly limited as long as it can store the ring-shaped element. Examples include tonicity buffer solutions such as water and physiological saline, and liquids in which drugs are dissolved in these tonicity buffer solutions can also be used.

The height of the holding portion 6 is formed to the extent that the top 8 of the holding portion contacts the cover 5 or to the point where it is in contact. By minimizing the gap Z between the holding portion 6 and the cover portion 5, the ring-shaped element floating in the receiving portion 1 can be prevented from moving to the outside of the holding portion 6 through the opening of the ring-shaped element over the top 8 of the holding portion 6 (Figure 1, Figure 2, Figure 4). For example, when normal contact lenses are stored in the cover plate container of one aspect of the present invention, compared with the normal cover plate container for contact lenses, the cover plate container of one aspect of the present invention is due to the holding part and the cover part There is almost no gap or no gap between them, so the contact lens is sandwiched between the holding part and the cover part, and damage to the lens may occur or adversely affect the optical characteristics. Therefore, the cover container of one aspect of the present invention has a structure specialized for storage of ring-shaped components. That is, as shown in FIGS. 2 and 4, the height X of the holding part is formed as the height Y of the receiving part, preferably 90-100%, and more preferably 95-100%.

In addition, the volume B of the holding portion 6 is the volume of the area formed by the convex shape from the deepest part 7 of the accommodating part 1 to the top 8 of the holding portion (FIG. 2 ). By designing the volume B of the holding part 6 in the storage part 1 to a predetermined ratio Since the volume A of the receiving portion 1 is limited, the movable area of the ring element in the receiving portion 1 is also limited, and the movement of the ring element out of the holding portion 6 is prevented. That is, for the composition ratio of the accommodating portion 1 and the holding portion 6, the ratio of the volume B of the holding portion 6 to the volume A of the accommodating portion 1 is preferably 50 to 80%, and more preferably 60 to 75%.

The inclined support portion 3 is formed to extend from the short side end portion of one side of the flange portion 2 in the same downward direction as the bottom side of the storage portion 1. The width of the inclined support part 3 is preferably in contact with the width of the short side end of the flange part 2 or narrower. In addition, an uneven anti-slip string is added to at least one surface in the vertical direction of the inclined support portion 3, so that it can have a shape that is easy for the user to hold.

In addition, the angular support portion 4 is arranged to face the inclined support portion 3 across the storage portion 1, and is formed at the periphery of the other short side end of the flange portion 2 toward the bottom side of the storage portion 1. Extend to form an angle. The angular support portion 4 may be formed to extend from the whole or a part of the other short side end to the long side end of the flange portion 2 in the downward direction of the storage portion 1.

As shown in Fig. 2, the height m of the inclined support part 3 considers the stability when the cover plate container for ring-shaped components is placed on the table, and the height n of the diagonal support part 4 is preferably 100~150% , 100~120% is better. When the height m of the inclined support portion 3 exceeds 150% of the height n of the angle-shaped support portion 4, there is a concern that the storage liquid in the storage portion 1 may spill out when it is placed on a table after unsealing. In addition, even when the height m of the inclined support portion 3 is less than 100% of the height n of the angular support portion 4, there is a possibility of spilling the preservation solution, and in the case where it is placed, the center of gravity is deviated toward the angular support portion Side, so the container cannot be supported.

In the cover plate container for ring-shaped components, the lid portion 5 is a sheet type formed by a sheet structure in which the entire cover portion 5 can be removed at the time of unsealing, or according to the opening of the storage portion 1 that can be removed only Pull-top knot The pull-top type formed by the structure is better. The container system cover 5 shown in Figs. 1 to 5 is a sheet type. Like the conventional hooded container, the lid portion 5 is welded to the container body by the flange portion 2 enlarged around the outer side of the accommodating portion 1 to be sealed.

[Material of cover plate container for ring components]

The cover 5 is preferably formed of a laminate of polypropylene and aluminum foil or the same synthetic resin as the container body. The laminate of polypropylene and aluminum foil is preferably formed by extrusion, and the same synthetic resin as the container body is ejected. The shape is better. As for the joining method of the lid 5 and the container body, it is better to use ordinary plastic welding methods such as thermal welding, ultrasonic welding, etc., and it is also possible to use an adhesive method using an adhesive or a solvent depending on the material.

The synthetic resin used in the cover plate container body for the ring-shaped element composed of the receiving portion 1, the flange portion 2, the inclined support portion 3, the angular support portion 4, and the holding portion 6 The sterilization step is performed after the preservation solution, and it is better to have heat resistance or drug resistance to the extent that it can withstand autoclave sterilization. Generally, polyethylene, polypropylene, alicyclic polyolefin, polyethylene terephthalate, polybutylene terephthalate, polycarbonate, thermoplastic elastomer, etc. are listed.

The cover plate container system for ring-shaped elements is preferable in terms of molding processing, for example, when the same synthetic resin is used for the container body and the lid portion 5. The cover plate container for ring-shaped components uses a heat-resistant, biodegradable resin, which has the advantage of being easy to dispose of after use.

A specific form of the cover plate container for ring components is the cover plate container for ring components as shown below. The height Y of the storage part 1 is 2~10mm, preferably 3~9mm; the height of the inclined support part 3 is m It is 3~12mm, preferably 4~10mm; the height n of the angular support 4 is 2.5~11.5mm, preferably 3.5~9.5mm; The height X of the part 6 is 1.8~9.5mm, preferably 2.7~9mm; the holding part 6 is arranged at the bottom of the receiving part 1, inscribed with the ring element, and has a height X that is in contact with the cover 5 The height X of the holding portion 6 is formed to be 90-100% to the height Y of the receiving portion 1, and the volume B of the holding portion 6 is formed to the volume A of the receiving portion 1, preferably 50 to 80%.

The cover plate container for ring-shaped components according to one aspect of the present invention suppresses the movement of the stored ring-shaped components in the accommodating portion, so that the occurrence of reversal or twisting can be reduced. The degree of reduction in the occurrence of reversal or twisting can be evaluated based on the static and reversibility described in the embodiments described later. The cover plate container for ring-shaped components according to one aspect of the present invention preferably has high staticity, more preferably 95% or more static, and most preferably 99% or more static. In addition, the cover plate container for ring-shaped elements according to one aspect of the present invention has low reversibility, more preferably less than 5%, and more preferably less than 1%.

Hereinafter, the present invention will be explained more specifically based on examples. However, the present invention is not limited to these examples. As long as the problem of the present invention can be solved, the present invention can take various forms.

[Example]

For the height X of the holding part, the height Y of the storage part, the gap Z between the holding part and the cover, the volume ratio of the volume A of the storage part and the volume B of the holding part, the height m of the inclined support part and the height of the angle support part n, with the values shown in Table 1, the cover plate containers for ring-shaped components of the Examples and Comparative Examples shown in Figs. 1 to 5 were produced. The ring element uses 2-hydroxy methacrylate polymer with an inner diameter of 13 mm and an outer diameter of 18 mm. The cover plate container for ring-shaped components of Examples 1 and 2 and Comparative Examples 1 and 2 was produced by pouring polypropylene into a mold forming the shape of Table 1 below, and heating at 60°C for about 6 to 12 hours.

Example 1 and Comparative Example 1 are the containers of the first form shown in Figures 1 to 3, the shape of the holding part is a single hemispherical shape, and the height m of the inclined support part is set equal to the height n of the angle support part status. Here, in Example 1 and Comparative Example 1, the height Y of the accommodating part is the same, and only the height X of the holding part is different. In Embodiment 1, the height X of the holding portion is the same as the height Y of the receiving portion, that is, the gap Z between the holding portion and the cover is zero, and the ratio of the holding portion volume B to the volume A of the receiving portion is 75%. On the other hand, in Comparative Example 1, the height X of the holding portion is 64.9% of the height Y of the accommodating portion, and the gap Z between the holding portion and the cover is 1.3 mm, which is greater than the volume B of the holding portion of the accommodating portion A. The ratio is 48.5%.

Example 2 and Comparative Example 2 are the containers of the second form shown in Figures 4 to 5, the shape of the holding part is a truncated cone shape, and the height m of the inclined support part is higher than the height n of the angle support part by 0.05mm ( 101%). Here, in Example 2 and Comparative Example 2, the height Y of the accommodating part is the same, and only the height X of the holding part is different. In Example 2, the height X of the holding part is lower than the height Y of the receiving part (91.9%), the gap Z between the holding part and the cover is 0.3mm, and the ratio of the holding part volume B to the volume A of the receiving part is 60% . On the other hand, in Comparative Example 2, the height X of the holding part is very low relative to the height Y of the receiving part, which is 27% of the height. The gap Z between the holding part and the cover is 2.7mm, which is a The ratio of volume B is 20.5%.

In Table 1 below, the cover plate containers for ring-shaped components of Example 1 and Example 2 and Comparative Example 1 and Comparative Example 2 are collectively shown to evaluate the static properties to the holding part, the movement to the outside of the holding part, and The result of the reversal.

The static property was evaluated based on the ratio of the stationary part of the ring element when holding the cover plate container with hands for 20 samples of the cover plate container for each ring element, and vibrating it up and down for 10 seconds. Furthermore, the rate of occurrence of reversal of the ring-shaped element that moved away from the holding portion through the opening of the ring-shaped element from the holding portion was confirmed.

As shown in Table 1, in the cover plate containers for ring-shaped components of Examples 1 and 2, the static and reversibility of the ring-shaped components are the same as those of the cover plate containers for ring-shaped components of Comparative Examples 1 and 2. Compared with the static and reversibility of the element, it is particularly excellent.

1‧‧‧Receiving Department

2‧‧‧Flange

3‧‧‧Tilt support

4‧‧‧Angular support

5‧‧‧Cover

6‧‧‧Retention Department

7‧‧‧The deepest part of the storage department

8‧‧‧The top of the holding part

Claims (3)

A cover plate container for ring-shaped elements, the ring-shaped element has an opening at the center to prevent contact with the cornea; the cover plate container for ring-shaped elements includes: (a) a receiving portion for storing a preservation solution and being immersed in the preservation solution (B) A rectangular flange portion formed around the receiving portion; (c) Inclined support portion, from the short side end of one side of the flange portion to the bottom side of the receiving portion It extends obliquely; (d) an angular support portion extending from the periphery of the other short side end of the flange portion toward the bottom side of the receiving portion; (e) a cover portion covering the receiving portion; and ( f) A convex holding part is arranged at the bottom of the receiving part and is in contact with the ring element. The width has a diameter smaller than the width of the opening of the ring element; wherein the height of the inclined support portion is equal to the height of the angular support portion, and the height of the receiving portion is uniform. For example, the cover plate container for ring-shaped components in the first item of the scope of patent application, wherein the height of the holding portion is formed at a ratio of 90 to 100% relative to the height of the receiving portion. For example, the cover plate container for ring-shaped components in the first item of the scope of patent application, wherein the volume of the holding portion is formed at a ratio of 50 to 80% relative to the volume of the receiving portion.

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