WO2008029784A1

WO2008029784A1 - Eyewash container

Info

Publication number: WO2008029784A1
Application number: PCT/JP2007/067174
Authority: WO
Inventors: Saho Kawai
Original assignee: Kobayashi Pharmaceutical Co., Ltd.
Priority date: 2006-09-06
Filing date: 2007-09-04
Publication date: 2008-03-13
Also published as: JP5019828B2; JP2008061787A

Abstract

[PROBLEMS] To provide an eyewash container that unfailingly prevents any leakage of collyrium. [MEANS FOR SOLVING PROBLEMS] The eyewash container is one comprising container frame (1) formed into a cup configuration and shaped so that the periphery of its opening matches the circumference of an eye and comprising flange part (2) provided on the periphery of the opening of the container frame (1), wherein the container frame (1) and the flange part are integrally formed from the same material, and wherein the flexural modulus of the material is in the range of 30 to 900 MPa, and wherein the width of the flange part (2) is 3.0 mm or greater.

Description

Specification

Eye wash container

Technical field

[0001] The present invention relates to a cup-shaped container for storing an eyewash solution, and an eyewash container for performing eyewashing in a state where the periphery of the opening is in contact with the periphery of the eye and the interior of the container is liquid-tight.

Background art

[0002] In recent years, eyewashing methods for washing eyes by pouring an eyewash into a cup-shaped eyewash container have been widely used for the prevention of eye diseases, countermeasures for hay fever, and the like. In this method, after pouring a predetermined amount of eyewash into the container, the face is turned up with the periphery of the opening in contact with the periphery of the eye and the container being liquid-tight. As a result, the eyes are immersed in the eyewash solution in the container, and the eyes are washed by blinking in this state. Various eyewash containers used for such eyewash methods have been proposed (for example, Patent Document 1).

Patent Document 1: International Publication No. 99/59520 Pamphlet

Disclosure of the invention

Problems to be solved by the invention

[0003] However, in the container as described above, when the opening edge of the container is brought into contact with the periphery of the eye, when the face that is difficult to form a liquid-tight state is turned upward, the opening edge of the container There was a problem with force eyewash being easy to leak!

[0004] The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an eyewash container that can reliably prevent leakage of eyewash liquid.

Means for solving the problem

[0005] The present invention has been made in order to solve the above-described problems, and is a container body formed in a cup shape and having an opening peripheral edge adapted to fit around the eyes, and an opening of the container body. A flange portion formed on the periphery, wherein the container body and the flange portion are integrally formed of the same material, the bending elastic modulus of the material is 30 to 900 MPa, and the width of the flange portion Is achieved by setting it to 3. Omm or more.

[0006] According to this configuration, since the flange portion is formed on the opening peripheral edge of the container main body, The area of the contact portion between the periphery of the container and the container can be increased, thereby preventing the eyewash from leaking. In addition, even if the container is strongly pressed around the eyes to prevent liquid leakage, the contact area is large, so that it is possible to prevent pain around the eyes.

[0007] In particular, in the present invention, since the container main body and the flange portion are integrally formed, it is possible to reduce the manufacturing cost. In addition, since the bending elastic modulus of the material forming the container is greater than 30 MPa, the container can be prevented from being deformed even if it is strongly pressed when it is brought into contact with the periphery of the eye. it can. In particular, if the container body is strongly gripped with a finger, the peripheral edge of the opening of the container body is also deformed accordingly, so that liquid leakage is liable to occur. It is possible to prevent deformation S. Furthermore, from the standpoint of storing eyewash, there is an advantage that the container is prevented from being excessively deformed, so that a sense of stability is increased when the container is lifted by grasping with a finger. On the other hand, since the bending elastic modulus of the material forming the container is smaller than 900 MPa, the peripheral edge of the opening of the container body can be appropriately deformed when the container is brought into contact with the periphery of the eye. Easier to fit around. In addition, it fits to the extent that water does not leak even if the container is not pressed against with a strong force, and it can also prevent the container from marking around the eyes. The flexural modulus as used in the present invention refers to a value measured based on JIS K 7171.

[0008] In addition to the bending elastic modulus of the container, the width of the flange portion is 3. Omm or more, so that liquid leakage can be reliably prevented, and even if the container is strongly pressed around the eyes, pain can occur. Force S Can prevent force S from being generated. Assuming a virtual curved surface that substantially contacts the peripheral edge of the opening of the container body, it can be considered that the flange portion has a surface extending along the virtual curved surface. In other words, the flange part is defined as a planar part that extends along the face around the eyes and can come into contact with the face when the container is brought into contact with the eyes without applying force. Can do. The width refers to the linear distance from the peripheral edge of the opening on the inner wall surface of the container body to the end of the flange (for example, symbol a in FIG. 4).

[0009] Furthermore, there are the following advantages by integrally forming the container body and the flange portion as described above. In other words, if both are formed separately, eyewash will accumulate at these connections. The power S that has a problem in terms of hygiene, and the ability to solve such a problem S by forming it in one. In addition, since it is formed integrally, it has the advantage that it is more rigid / compared to the assembly of separate members.

[0010] In the eyewash container, it is preferable that the width force of the portion of the flange portion that contacts the outer corner of the flange is larger than the width of the other portion. This is because liquid leakage is most likely to occur from the outer corner of the eye, and in this way, leakage from the outer corner of the eye can be reliably prevented. For example

The width of the heel portion that comes into contact with the eye corner ridge J is preferably 3.0 to 30 mm, more preferably 4.0 to 20 mm. On the other hand, the width of the portion other than the outer corner of the eye is 3.0 to 10.0 mm, preferably S, and more preferably 4.0 to 8. Omm.

The invention's effect

[0011] According to the eyewash container of the present invention, it is possible to prevent the eyewash liquid from leaking and to prevent the eye force from causing pain around the eyes when the container abuts.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of an eyewash container according to the present invention will be described with reference to the drawings. 1 is a perspective view of an eyewashing container according to the present embodiment, FIG. 2 is a front view of FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG.

[0013] The eyewash container according to the present embodiment is a cup-shaped container for storing an eyewash solution, and performs eyewashing with the periphery of the opening in contact with the periphery of the eye and the inside of the container being liquid-tight. belongs to. As shown in FIG. 1, this container includes a cup-shaped container body 1 having an elliptical shape in plan view, and a flange portion 2 formed at the periphery of the opening, and these are integrally formed. . As shown in FIG. 2, the peripheral edge of the opening of the container body 1 is formed such that the portions corresponding to the outer corners and the outer corners facing in the radial direction are higher than the other portions so as to fit around the eyes. ing. A flange portion 2 extends outward in the radial direction of the container body 1 from the periphery of the opening.

As shown in FIGS. 2 to 4, the width a of the flange portion 2 is such that the portion 21 in contact with the outer corner side is larger than the other portion 22. This is because eyewash often leaks from the vicinity of the corner of the eye when washing eyes. Therefore, the width of the portion in contact with the outer corner of the eye is preferably 3.0 to 30. Omm, and more preferably 4 · 20 to 20. Omm. one On the other hand, if the width of the portion 22 other than the corner of the eye is increased, the nose will be in the way and it will be difficult to contact the periphery of the eye. · 0-8. More preferably, Omm. As shown in FIG. 4, the width a of the flange portion is a linear distance from the opening peripheral edge of the inner wall surface of the container body 1 to the end of the flange portion 2, and is a portion that can come into contact with the circumference of the eye. The width of

Here, the lower limit value of the width a of the flange portion 2 is largely related to the strength of the container described later. In other words, if the strength of the container is too small, the container body 1 is easily deformed when gripped with a finger, and liquid leakage is likely to occur. Therefore, it is necessary to make the width of the flange portion 2 large to some extent as described above. On the other hand, if the strength of the container is too high, it will be difficult to deform and will not fit around the eyes, so liquid leakage will easily occur. Therefore, it is necessary to set the lower limit value of the width of the flange portion 2 as described above. Also, if the width of the flange portion 2 is too narrow, there is a possibility of causing pain when it comes into contact with the periphery of the eyes. Therefore, it can be prevented by doing as described above.

[0016] Various materials can be used as the material for the eyewash container according to the present embodiment. For example, polychlorinated bur, acrylonitrile butadiene styrene resin, low-substituted polyethylene, polycarbonate, polypropylene, polystyrene, synthetic Rubber, Natural rubber, Methacrylic resin, Silicone rubber, Polyurethane, Polytrifluoroethylene, Thermoplastic elastomer, Polybutyl alcohol, Polytetrafluoroethylene, Epoxy resin, Polyethylene terephthalate, Polyamide, Polyacetal, Polyvinylidene fluoride , Urea resin, poly (butyl acetate), polyethylene terephthalate, polyethylene naphthalate, phenol resin, alkyd resin, melamine resin, cyanotalate, or acrylic resin. Preferably composed of fat! /.

[0017] Further, it is preferable to set the bending elastic modulus of the material of the container formed of these resins to 30 to 900 MPa, and further preferably to 40 to 700 MPa. As described above, this is because if the flexural modulus of the material forming the container is less than 30 MPa, it is easy to deform and liquid leakage is likely to occur. This is for lowering. In particular, when the container main body 1 is strongly held with a finger when the container is brought into contact with eyes, the peripheral edge of the opening of the container main body 1 is also deformed. By setting the lower limit value of the flexural modulus to, excessive deformation of the container body 1 can be prevented.

[0018] As described above, according to the present embodiment, since the flange portion 2 is formed at the opening peripheral edge of the container body 1, the area of the contact portion between the periphery of the eye and the container can be increased. This prevents the eyewash from leaking. In addition, even if the container is strongly pressed around the eyes to prevent liquid leakage, the contact area is large, so that it is possible to prevent pain around the eyes.

[0019] In particular, since the width a of the flange portion 2 and the bending elastic modulus of the material constituting the container are set as described above, it is possible to reliably prevent liquid leakage and to improve fit. it can. It can also prevent pain when abutting around the eyes.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the force that makes the width of the flange portion of the portion 21 in contact with the outer corner side larger than that of the other portion 22. The width of the flange portion 2 that does not necessarily need to be changed in this way is appropriately changed. Can do. For example, the width of the flange portion 2 can be the same over the entire circumference. In contrast to the above-described embodiment, the width of the flange 21 on the outer corner can be made smaller than that of other portions, for example, the front side. Furthermore, the width of the flange portion may be different on the upper side, the lower side, the upper side of the eye, and the outer side of the eye, or two or more of these portions may have the same width. And various modifications are possible. Example

[0021] Examples of the present invention will be described below. However, the present invention is not limited to this example.

Here, samples according to examples of the present invention;! To 4 and comparative examples to be compared with these samples were prepared. Here, we prepared containers for eyewash as shown in Fig.5 and Fig.6, and changed the width of flange part (eye corner side and other parts) and the material composing the container, respectively. Samples were prepared. 5 is a plan view of the sample according to the example and the comparative example, and FIG. 6 is a cross-sectional view of the BB spring in FIG. Further, the flexural modulus shown in the following table is a flexural modulus of the material itself constituting the container. The spec of each sample is See Table 1 below.

[table 1]

Each sample was used to have 6 subjects wash their eyes and evaluated for ease of holding, fit, pain, and leakage based on the following criteria.

(a) Ease of holding

1. Good, 2. Somewhat good, 3. None, 4. Somewhat bad, 5. Bad

(b) Fit

1. Good, 2. Somewhat good, 3. None, 4. Somewhat bad, 5. Bad

(c) Presence or absence of pain

1.No pain, 2.Not so painful, 3.Neither, 4.Slightly painful, 5.

(d) Liquid leakage

1. No, 2. Not much, 3. Neither, 4. Somewhat 5.

(e) Overall evaluation

Based on the above criteria, for the evaluation by 6 subjects! /, The average score of 5 grades is 2 or less, 3 points, greater than 2 and 3 or less 2 points, greater than 3 and 4 or less 1 A point greater than 4 and less than or equal to 5 was defined as 0 point. The total score of the four items was 11 or more, ◎, 9 to; 10 was ◯, 6 to 8 was △, and 5 or less was X. The results are shown in Table 2 below.

[Table 2] Examples Examples Examples Examples Examples Comparative Examples Comparative Examples Comparative Examples Comparative Examples Comparative Examples

1 2 3 4 1 2 3 4 5 Ease of holding 3 points 1 point 3 points 3 points 3 points 3 points 0 points 2 points 1 point Fit 3 points 3 points 3 points 1 point 0 points 2 points 2 points 0 points 2 points Pain 3 points 3 points 3 points 3 points 1 point 0 points 3 points 0 points 3 points Liquid leak 3 points 2 points 3 points 3 points 0 points 1 point 1 point 0 points 1 point Total score 12 points 9 points 1 2 points 10 points 4 points 6 points 6 points 2 points F points Comprehensive evaluation ◎ ○ ◎ O △ 、 Δ From the above results, it is easy to deform when the flexural modulus is small, so the evaluation of ease of holding is low as in Comparative Example 3. Tend to be. On the other hand, if the flexural modulus is too large, the fit tends to deteriorate. As a result, in Comparative Example 1, liquid leakage has been confirmed. In addition, when the flange portion is narrow, even if the bending elastic modulus is moderate, it seems that liquid leakage occurs as in Comparative Example 2. Therefore, by setting the width of the flange portion and the bending elastic modulus within the predetermined ranges as in Examples 1 to 4, it is possible to prevent liquid leakage and obtain an appropriate fit.

Brief Description of Drawings

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

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of FIG. 1.

FIG. 4 is a cross-sectional view taken along line AA in FIG.

FIG. 5 is a plan view of Examples and Comparative Example I of such an eyewash container.

6 is a cross-sectional view taken along line BB in FIG.

Explanation of symbols

[0026] 1 Container body

2 Flange

21 The part that contacts the corner of the eye

22 Parts other than the corner of the eyes

Claims

The scope of the claims

[1] A container body that is formed in a cup shape and has a peripheral edge that fits around the eyes,

A flange formed on the opening periphery of the container body,

The container body and the flange portion are integrally formed of the same material, and the bending elastic modulus of the material is 30 to 900 MPa,

The width of the flange portion is 3. Omm or more.

[2] The eye wash container according to claim 1, wherein a width of a portion of the flange portion that contacts the outer corner of the flange is larger than a width of the other portion.