JP2022168682A - Eye lotion container - Google Patents

Abstract

To provide an eye lotion container 1 which can reduce a pressure when liquid medicine E is landed on a cornea while easily performing ocular instillation, and suppress harmful effect to eyes.SOLUTION: An eye lotion container comprises: a container 2 storing the liquid medicine E for ocular instillation; and a cap 3 detachably provided on a tip of the container 2. The container 2 has a foam generation part 4 through which the liquid medicine E passes by a pressurization operation in ocular instillation by a user, and in passage thereof, foamy liquid medicine e is generated thereon. The container 2 comprises: a container main body 21 which is formed into a colorless transparent or colored transparent hollow shape from a synthetic resin material and can be deformed by the pressurization operation of the user; and a pouring plug 22 which is provided on a pouring plug fitting hole 21a formed on the container main body 21, and is provided with a liquid medicine discharge hole 22a through which the liquid medicine E can be dripped when the pressurization operation is performed in a state of directing downward the container main body 21.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to an eye drop container, and more particularly to an eye drop container in which eye drops are dripped in the form of foam.

Conventionally, when a user himself instills an eye drop medicinal solution contained in a container, it has been a problem how to instill it properly, and there are also documents that present the problem (for example, Non-Patent Document 1). reference).

This non-patent document 1 presents problems related to essential knowledge, problems related to basic procedures, and problems related to better procedures as factors for poor eye-drop adherence (appropriate use and ability to use eye drops). there is

Specifically, as problems related to essential knowledge, points such as lack of understanding of usage and failure to properly follow prescriptions such as instillation time and intervals are presented.

In addition, as problems related to basic procedures, factors such as the inability to take an appropriate body position and the inability to confirm the eye drop destination are presented as factors that prevent the operator from properly performing the procedure when instilling the drug solution.

Furthermore, as problems related to better procedures, points such as the cleanliness of the container and the use environment not being properly handled, such as wiping with a tissue instead of washing the face, have been presented.

Non-Patent Document 1 does not mention, for example, a specific technique for solving problems related to basic procedures.

Many proposals have been made to provide a guide jig so as to keep the relative position between the user's eye (on one side) and the droplet at a proper position.

However, with such a guide jig, the size of the entire eye drop container increases, and the design of the container results in a complicated structure, which in turn raises the cost of the container. Reusing the guide jig also leads to the problem of inability to maintain cleanliness, as posed by the problem of better technique discussed above.

Therefore, since eye instillation is performed with one hand, a method focusing on the so-called fist method using the other free hand has been proposed (see, for example, Non-Patent Document 2).

On the other hand, it is well known that the 0.5 mm-thick cornea is composed of five layers, namely, from the surface side, the corneal epithelium, Bowman's membrane, corneal stroma, Descemet's membrane, and corneal endothelium.

A large number of cells of the corneal endothelium are arranged in a substantially honeycomb-like shape, and for example, there are 4,000 to 5,000 cells in early childhood. When one of these many cells dies, the dead cell is absorbed by other adjacent cells, and the number of cells gradually decreases while the size of the single cell gradually increases.

When the number of endothelial cells is reduced to, for example, 500 or less, a part of the cells are cut by a scalpel during ophthalmic surgery and further die, thereby supplying nutrients to the cornea. It becomes difficult, and there is a possibility of leading to corneal diseases such as infection. For this reason, it has been pointed out that surgery should not be performed on patients whose cell count is 500 or less (see, for example, Patent Document 1).

Japanese Patent No. 3276184

Medical Aoi Publishing Atarashii Ophthalmology Vol. 35 No. 12 (Release date: 2019/1/1) P103-106 Masaki Yato Problems of eye drop adherence ascertained by the KJ method Journal of Japanese Rural Medicine (Journal of Japanese Rural Medicine) Vol.64 No.1 (Published: 2015/07/10) P61-65 Mieko Ubukata, Tomoko Haga Reliable Eye Drop Technique for Patients Undergoing Ophthalmic Surgery Efforts to learn

However, when the method disclosed in Non-Patent Document 2 described above is used, the cornea and the liquid droplet are separated by an amount corresponding to the "fist". Therefore, when the droplet lands on the cornea, the drop pressure is directly applied to the cornea.

Such falling pressure is a stimulus applied to the cornea before the medicinal solution exerts its medicinal effect (for example, stimulating properties), and may cause the user to turn away reflexively, causing discomfort to the user. In some cases, the pressure is not so small.

Moreover, applying excessive pressure to the thin cornea described above is not preferable considering the adverse effects on endothelial cells.

In addition, as a problem when such a chemical solution is dropped, air may enter the chemical solution at the tip of the container, resulting in the formation of one to three large soap bubble-like bubbles.

If such a large bubble bursts before it is dropped, the drug solution will be scattered around the eye and will be wasted. Therefore, there is also an idea that the generation of such large bubbles should be suppressed.

Therefore, if it is possible to easily perform proper instillation while avoiding application of such a large pressure that the droplet directly hits the cornea, it is clearly preferable.

SUMMARY OF THE INVENTION An object of the present invention is to provide an eye drop container that facilitates eye instillation, reduces the pressure when a drop of medicinal solution lands on the cornea, and can suppress adverse effects on the eye.

In order to solve the above-mentioned problems, the present invention comprises a container containing a medicinal solution for instillation, and a cap detachably provided at the tip of the container, wherein the container is provided with a medicinal solution for instillation by a user. A foam generating part is provided for allowing the chemical solution to pass by the pressurization operation of (1) and for generating a foamy chemical solution during the passage.

ADVANTAGE OF THE INVENTION According to this invention, the pressure at the time of the drop of a chemical|medical solution landing on a cornea can be reduced, and the adverse effect to an eye can be suppressed, while instilling easily.

Fig. 2 is a cross-sectional view of an eye drop container showing an example in which a passing film portion as a bubble generating portion is arranged inside the container body; (A) is a cross-sectional view of the container showing a bubble generation state, and (B) is a cross-sectional view of the container showing a state of instillation. Fig. 10 is a cross-sectional view of an eyedropper container showing an example in which a passing membrane portion as a foam generating portion is arranged inside the outlet plug. (A) is a cross-sectional view of the container showing a bubble generation state, and (B) is a cross-sectional view of the container showing a state of instillation. (A) is a cross-sectional view of an eye drop container showing an example in which a foam-generating path as a foam-generating part is arranged inside the outlet plug, and (B) is a perspective view of the foam-generating part. (A) is a cross-sectional view of the container showing a bubble generation state, and (B) is a cross-sectional view of the container showing a state of instillation.

Next, an eye drop container according to one embodiment of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show an example in which a passing film portion as a foam generating portion is arranged inside the container body.

1 and 2, an eye drop container 1 includes a container 2 containing a medicinal solution E for instillation and a cap 3 detachable from the tip of the container 2. As shown in FIG.

In addition, the medicinal solution E passes through the container 2 due to the user's pressurization operation for instillation, and foamed medicinal solution e (hereinafter also simply referred to as "bubbles" or "bubbles") when the medicinal solution E passes through. ) is provided.

The container 2 includes a container body 21 which is made of a synthetic resin material and has a colorless, transparent or colored hollow shape and which can be deformed by a user's pressurizing operation. and a pouring plug 22 provided with a liquid medicine discharge path 22a penetrating so that the liquid medicine E can be dripped when a pressurizing operation is performed with the container body 21 facing downward.

The container body 21 is a flat or cylindrical hollow container made of a synthetic resin having appropriate elasticity so that it can be deformed in accordance with the user's eye drop operation (pressurization operation). A medicinal liquid E is stored. Note that the container body 21 is made of a transparent hard resin such as polyethylene terephthalate (PET) or polycarbonate (PC) that is made to be deformable under pressure by reducing the thickness thereof. is not particularly limited and not a nest.

The pouring plug 22 is made of, for example, a synthetic resin softer than the container body 21, and is press-fitted into the pouring plug mounting hole 21a so that the tip nozzle portion 22b protrudes.

The pouring plug 22 has, for example, a large-diameter press-fit portion 22c that is press-fitted into the pouring plug mounting hole 21a for instilling the drug solution E into the eye, and the liquid medicine E stored in the container body 21 leaks from the pouring plug mounting hole 21a. A plug portion 22d for ensuring airtightness and a tapered nozzle portion 22b having a diameter smaller than that of the press-fitting portion 22c are integrally formed.

The liquid medicine ejection path 22a includes a large-diameter storage space part 22a1 formed in the press-fitting part 22c, which is upstream in the downward direction of the liquid medicine droplet when the nozzle part 22b is directed downward for instillation, and temporarily stores the liquid medicine E; A small-diameter liquid introduction portion 22a2 formed in the nozzle portion 22b including the plug portion 22d and communicating with the storage space portion 22a1 is integrally formed.

The cap 3 is made of synthetic resin, for example, and attached to the container body 21 so as to follow the tip of the pouring plug 22 . The material, color, shape, etc. of the cap 3 are not particularly limited.

The foam generating part 4 is located inside the container body 21 and closer to the spout 22 than the upper surface of the medicinal solution E when the spout 22 faces upward, and is an impermeable membrane through which the medicinal solution E does not pass. A portion 41 and a passing film portion 42 made of a mesh filter that generates a foamy chemical solution e when the chemical solution E passes through are provided integrally with the outlet plug 22 .

The bubbles of the medicinal solution E are generated downstream of the mesh-like filter material (hereinafter also simply referred to as "mesh material") that constitutes the membrane-passing part 42 when the medicinal solution E flows downstream of the membrane-passing part 42 in conjunction with the eyedropping operation. It is generated by breaking the air column (generally also called "fine bubble") suddenly generated on the side. This phenomenon is a cavitation effect that occurs when the chemical solution E containing gas collides with the mesh material.

The cavitation effect here means a phenomenon in which fine air bubbles are suddenly generated on the downstream side of the mesh material when a water flow containing no air bubbles passes through the mesh material. In addition, the cavitation effect is highly dependent on the ambient temperature (or the temperature of the chemical solution E), the thickness, coarseness, and shape of the mesh material. The higher the resistance, the more likely it is to occur. This is clear, for example, from the fact that the air column generated in the tap water discharged from the faucet changes depending on the discharge amount (release speed) of the tap water. Therefore, the length and shape of the air column are determined by the passage speed of the mesh material due to the friction generated between the drug solution E and the mesh material, which flows along with the eyedropping operation, and the pressure generated thereby. The shorter one along the direction of flow of E is preferred.

Based on the above, the mesh material should be selected according to the medicinal solution E to be used, considering the flow velocity of the medicinal solution E accompanying the eyedropping operation, and the density including the material and thickness (hereinafter also referred to as "mesh density") ) is determined. At this time, the generation of the air column is highly dependent on the temperature of the chemical solution E as well.

That is, the higher the temperature of the chemical solution E, the higher the energy value inherent in the chemical solution E. Therefore, the energy of the water flow is required for foaming the chemical liquid E. FIG. At a high temperature where the energy inherent in the chemical solution E, that is, the internal energy of the water flow is also high, bubbling is more likely to occur at a high temperature than at a low temperature at the same flow velocity. Therefore, the rate at which the amount of gas that forms bubbles is generated increases, and the increase in the mass of air that forms the basis of the air column causes the air column to expand faster at higher temperatures.

As described above, the medicinal solution E to be used is more likely to foam when it can be stored at room temperature while ensuring its use as an eye drop, compared to when it is stored at a low temperature such as a refrigerator.

The mesh coarseness is such that the foamed ophthalmic solution (medical solution E dropped when instilled) has a larger diameter than the water droplet diameter when the eyedrop amount is equivalent to one drop when the liquid is instilled into the eye. For example, when about 10 bubbles are generated, it is preferable that the average diameter of the bubbles is equal to or less than the average diameter of the bubbles. In this case, the mesh material (thread-like) overlapped in the thickness direction of the passage membrane part 42 along the flow direction of the chemical solution E may be overlapped to reduce the diameter.

In addition, since the amount of medicinal solution E at the time of instillation is small and the speed is slow, the generated bubbles are likely to coalesce. This is because the coarser (larger) the mesh coarseness, the lower the ratio of the material portion that comes into contact with air masses (air columns), making it impossible to support a large volume of air masses with surface tension, making foaming more difficult.

Next, an example of instillation of the liquid medicine E will be described with reference to FIG.

When the medicinal solution E is instilled into the eye, as shown in FIG. 2A, the container main body 21 is turned upside down and pressure is applied so as to pinch two opposing points of the container main body 21 with fingers (first push). The chemical solution E passes only through the passage membrane portion 42, and a foamy chemical solution e is generated at that time.

The user drops the foamy medical solution e from the passing film portion 42 into the storage space portion 22a1 while adjusting the amount (dripping amount) of the foamy medical solution e by viewing the container main body 21 from the side.

Then, as shown in FIG. 2(B), the eye G is positioned below the nozzle portion 22b and the container body 21 is pressurized again (second push), so that the foamed medical solution e is discharged from the tip of the nozzle portion 22b. Appears and can be instilled.

At this time, a second foamy liquid medicine e' is generated in the passage membrane portion 42, but if this foamy liquid medicine e' is left standing with the container body 21 facing upward, the bubbles will pop naturally and the water will pass through the membrane. It passes through part 42 and returns.

As described above, the container 2 containing the medicinal solution E for instillation and the cap 3 detachably provided at the tip of the container 2 are provided. The container 2 is made of a hollow resin material and is deformable by a user's pressurizing operation. A liquid discharge path 22a is provided in a spout plug attachment hole 21a formed in the container main body 21 so that the liquid medicine E can drip when the container main body 21 is directed downward and a pressurizing operation is performed. The foam generating part 4 is located inside the container body 21 and closer to the outlet plug 22 than the upper surface of the liquid medicine E when the outlet plug 22 is directed upward, and A non-passing film portion 41 through which the chemical solution E does not pass, and a passing film portion 42 made of a mesh-like filter that forms bubbles when the chemical solution E passes through and are opposed to the spout plug 22 are integrally provided. In addition to having the effect of reducing the pressure when the medicinal solution E drops onto the cornea while instilling the eye easily, and suppressing adverse effects on the eye, the following synergistic effects can be achieved. can.

Until the foamed medical solution e swells at the tip of the nozzle part 22b and drops, the dripping time is secured longer than in the conventional case of only water droplets, and the diameter of the foamed medical solution e is increased. Adjustments can be made easily.

Even if the eye is blinked after instillation, it is less likely to overflow from the eye compared to water droplets, so that the medicinal solution E can be easily absorbed into the eye and wasteful consumption of the medicinal solution E can be suppressed.

3 and 4 show an example in which a passing membrane portion as a foam generating portion is arranged inside the pouring plug.

3 and 4, an eye drop container 1 includes a container 2 containing a medicinal solution E for instillation and a cap 3 detachably attached to the tip of the container 2. As shown in FIG.

Further, the container 2 is provided with a bubble generating portion 5 for generating a foam-like medical solution e when the medical solution E passes through the container 2 by a pressurizing operation for instillation by the user and the medical solution E passes.

The container 2 includes a container body 21 which is made of a synthetic resin material and has a colorless, transparent or colored hollow shape and which can be deformed by a user's pressurizing operation. and a pouring plug 22 provided with a liquid medicine discharge path 22a penetrating so that the liquid medicine E can be dripped when a pressurizing operation is performed with the container body 21 facing downward. In this example, the configuration is substantially the same except that the foam generating part 4 is not arranged in the container main body 21, so the same reference numerals as in the above example are given and detailed description thereof will be given. are omitted.

The liquid medicine ejection path 22a includes a large-diameter storage space part 22a1 formed in the press-fitting part 22c, which is upstream in the downward direction of the liquid medicine droplet when the nozzle part 22b is directed downward for instillation, and temporarily stores the liquid medicine E; A small-diameter liquid introduction portion 22a2 formed in the nozzle portion 22b including the plug portion 22d and communicating with the storage space portion 22a1 is integrally formed.

The foam generator 5 is arranged inside the storage space 22a1. The bubble generating section 5 includes a passing film section 51 made of a mesh filter that is arranged upstream of the chemical liquid discharge path 22a in the direction of dropping the chemical liquid E and generates bubbles when the chemical liquid E passes through.

The passage membrane portion 51 is composed of a coarse mesh portion 51a and a finer mesh portion 51a, which is finer than the coarse mesh portion 51a, so that the mesh coarseness becomes finer so that the bubbles are made finer in stages when the chemical solution E passes through. and a mesh portion 51b. The foaming of the chemical liquid E by the coarse mesh portion 51a and the fine mesh portion 51b is as described above.

Next, an example of instillation of the liquid medicine E will be described with reference to FIG.

When the medicinal solution E is instilled into the eye, as shown in FIG. 4A, the container body 21 is turned upside down and pressure is applied so that two opposing points of the container body 21 are sandwiched between fingers, and the medicinal solution E passes through the permeable membrane portion. By passing through 51, foamy chemical solution e is generated.

Then, as shown in FIG. 4(B), the eye G is positioned below the nozzle portion 22b and pressurization is continued (first push), so that the foamed medical solution e emerges from the tip of the nozzle portion 22b. , it is possible to apply eye drops.

As described above, the container 2 containing the medicinal solution E for instillation and the cap 3 detachably provided at the tip of the container 2 are provided. The container body 21 is made of a resin material and deformable by a user's pressurizing operation. A liquid discharge path 22a is provided in a spout plug attachment hole 21a formed in the container main body 21 so that the liquid medicine E can drip when the container main body 21 is directed downward and a pressurizing operation is performed. The foam generation part 5 is a passing membrane part made of a mesh filter that is arranged on the upstream side of the chemical solution discharge path 22a in the direction of dropping the chemical solution E and generates bubbles when the chemical solution E passes through. By providing 51, it is possible to achieve the same eye drop effect and synergistic effect as described above.

In addition, the configuration of this example makes it possible to manufacture the foam generating section 5 (passing membrane section 51) more easily and at a lower cost than in the case where the foam generating section 4 is arranged inside the container body 21 described above. , the dropping operation can be enabled by a series of one pushes.

Further, a coarse mesh portion 51a and a coarse mesh portion 51a having finer coarseness than the coarse mesh portion 51a are provided so that the fineness of the mesh becomes finer so that the bubbles are made finer in stages when the chemical liquid E passes through the passage membrane portion 51. By forming the passage membrane portion 51 with a multi-layered structure of at least two layers including the fine mesh portion 51b, it is possible to further improve foaming.

As mentioned above, the higher the frictional resistance of the bubbles when passing through the mesh material, the finer the bubbles become. If it is too fine, it will be difficult to apply the eye drops.

Therefore, the arrangement of the coarse mesh portion 51a and the fine mesh portion 51b may be reversed in order to generate fine bubbles first and then combine the fine bubbles to increase the size (reduce the number of bubbles).

5 and 6 show an example in which a passing film portion as a foam generating portion is arranged inside the container body.

5 and 6, an eye drop container 1 includes a container 2 containing a medicinal solution E for instillation and a cap 3 detachably attached to the tip of the container 2. As shown in FIG.

In addition, the medicinal solution E passes through the container 2 due to the user's pressurization operation for instillation, and foamed medicinal solution e (hereinafter also simply referred to as "bubbles" or "bubbles") when the medicinal solution E passes through. ) is provided.

The container 2 includes a container body 21 which is made of a synthetic resin material and has a colorless, transparent or colored hollow shape and which can be deformed by a user's pressurizing operation. and a pouring plug 22 provided with a liquid medicine discharge path 22a penetrating so that the liquid medicine E can be dripped when a pressurizing operation is performed with the container body 21 facing downward. Also in this example, since the substantial configuration is the same except that the foam generating part 4 is not arranged in the container main body 21, the same reference numerals as in the above example are given and the details thereof are shown. Description is omitted.

The liquid medicine ejection path 22a includes a large-diameter storage space part 22a1 formed in the press-fitting part 22c, which is upstream in the downward direction of the liquid medicine droplet when the nozzle part 22b is directed downward for instillation, and temporarily stores the liquid medicine E; A small-diameter liquid introduction portion 22a2 formed in the nozzle portion 22b including the plug portion 22d and communicating with the storage space portion 22a1 is integrally formed.

The foam generating section 6 is formed in a columnar shape from synthetic resin or the like, and as shown in FIG.

With respect to the bubbles of the chemical solution E, since the cross-sectional area of the bubble generation channel 61 on the downstream side in the chemical droplet downward direction is smaller than the channel cross-sectional area of the container body 21 on the upstream side in the chemical droplet downward direction, and a plurality of bubbles are arranged, When the chemical solution E passes through the generation channel 61, the flow velocity of water increases and the pressure decreases. As a result, cavitation occurs, fine bubbles are generated in the chemical solution E, and foaming can be promoted.

Next, an example of instillation of the liquid medicine E will be described with reference to FIG.

When the medicinal solution E is instilled into the eye, as shown in FIG. 6A, the container body 21 is turned upside down and pressure is applied so that two opposing points of the container body 21 are sandwiched between fingers. It passes through the channel 61, in which a foamy chemical solution e is produced.

Then, as shown in FIG. 6(B), the eye G is positioned below the nozzle portion 22b and the pressure is continued (first push), so that the foamed liquid medicine e emerges from the tip of the nozzle portion 22b. , it is possible to apply eye drops.

As described above, the container 2 containing the medicinal solution E for instillation and the cap 3 detachably provided at the tip of the container 2 are provided. The container 2 is made of a resin material in the air and is deformable by a user's pressurizing operation. A liquid discharge path 22a is provided in a spout plug attachment hole 21a formed in the container main body 21 so that the liquid medicine E can drip when the container main body 21 is directed downward and a pressurizing operation is performed. The bubble generating part 6 is arranged on the upstream side of the chemical liquid discharge path 22a in the downward direction of the chemical liquid droplets, and is composed of a plurality of through holes that generate bubbles due to the cavitation effect when the chemical liquid E passes through. By providing the bubble generating path 61, the same eye drop effect and synergistic effect as described above can be achieved.

In addition, the structure of this example makes it possible to manufacture the foam generating part 6 easily and at low cost compared to the case where the foam generating part 4 is arranged inside the container main body 21 described above, and the dripping operation can be performed in a series of steps. It can be enabled with one push.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, it goes without saying that the scope of the technical idea of the present invention is not limited to the embodiments described here. Those who have ordinary knowledge in the technical field to which the present invention belongs can conceive various changes, modifications, combinations, etc. within the scope of the technical idea of the present invention described in the claims. Clearly it can be done. Therefore, the later techniques such as these changes, modifications, combinations, etc. naturally belong to the scope of the technical idea of the present invention. Hereinafter, such modifications will be described in order.

(1) Making the medicinal solution E viscous The medicinal solution E for eye drops is generally a liquid close to water. Also known to be viscous.

Therefore, by using such a viscous chemical solution E, it is possible to adjust the relative relationship between the viscosity, the mesh coarseness, and the hole diameter of the chemical solution discharge passage 22a, thereby promoting foaming.

(2) Double container body 21 (see FIGS. 1 and 2)
A bag-like container (not shown) is provided inside the container body 21 as an impermeable membrane 41 through which the chemical solution E does not pass. A passing film portion 42 made of a mesh-like filter that generates bubbles when the chemical solution passes may be provided so as to face the outlet plug 22 .

(3) Change the hole diameter of the foam generation path 61 (see FIGS. 5 and 6)
In the above example, the hole diameters of the plurality of foam generation channels 61 are the same as a whole, and the hole diameter of each hole is also the same along the axial direction. The hole diameters of 61 may be varied by a plurality of large and small hole diameters as a whole, or the hole diameter on the downstream side of each hole may be tapered smaller than the hole diameter on the upstream side to improve the calibration effect. is also possible.

(4) Forming a spiral groove on the inner wall surface of the foam generation path 61 A female screw-shaped spiral groove is formed on the inner wall surface of the foam generation path 61 with a predetermined depth and angle. Foaming of the chemical solution E may be promoted while allowing the chemical solution E to pass through the wall surface.

1 Eye drop container 2 Container 21 Container main body 21a Extraction plug mounting hole 22 Extraction plug 22a Liquid medicine discharge path 22a1 Storage space part 22a2 Liquid introduction part 22b Nozzle part 22c Press-fitting part 22d Stopper part 3 Cap 4 Bubble generation part 41 Non-passing membrane part 42 Passing Membrane Part 5 Bubble Generation Part 51 Passing Membrane Part 51a Coarse Mesh Part 51b Fine Mesh Part 6 Bubble Generation Part 61 Bubble Generation Path E Chemical Solution e Foamy Chemical Solution G Eye

In order to solve the above-mentioned problems, the present invention comprises a container containing a medicinal solution for instillation, and a cap detachably provided at the tip of the container, wherein the container is provided with a medicinal solution for instillation by a user. The eyedropper is provided with a foam generating part through which the drug solution passes by a pressurization operation and generates a foam-like drug solution during the passage, wherein the container is formed in the air from a resin material and is deformed by the user's pressurization operation. and a chemical solution discharge path provided in a pouring plug mounting hole formed in the container body and penetrating so that the chemical solution can drip when the container body is oriented downward and a pressurizing operation is performed. and the foam generating part is located closer to the ejection plug than the top surface of the liquid medicine when the ejection plug is facing upward inside the container body, and an impermeable film portion through which the chemical solution does not pass, and a passing film portion composed of a mesh-shaped filter that faces the outlet plug and generates bubbles when the chemical solution passes through, and the mesh-shaped The filter has a mesh coarseness such that the diameter of the medicinal solution generated as bubbles and dropped when the medicinal solution is instilled into the eye is larger than the diameter of a droplet of water when the medicinal solution is instilled as a liquid in the eye . be.
Further, in order to solve the above-mentioned problems, the present invention includes a container containing a medicinal solution for eye drops, and a cap detachably provided at the tip of the container, wherein the container is provided with eye drops by a user. In an eye drop container provided with a foam generating portion for generating a foam-like drug solution during passage of the drug solution through a pressurizing operation, the container is made of a resin material and is hollow, and is pressurized by a user. a deformable container body; and a chemical solution discharger provided in a pouring plug mounting hole formed in the container body and penetrating so that the chemical solution can drip when the container body is oriented downward and a pressurizing operation is performed. a discharge plug provided with a path, wherein the bubble generating section is disposed upstream of the chemical liquid discharge path in the downward direction of the liquid medicine droplet, and is a passing membrane made of a mesh filter that generates bubbles when the liquid medicine passes through. wherein the mesh filter has a larger diameter of the drug solution generated as the bubbles and dropped when the drug solution is instilled into the eye, than a water droplet diameter equivalent to one drop when the drug solution is instilled as a liquid into the eye. It has a mesh density.

Claims (6)

a container containing a medicinal solution for eye drops;
a cap detachably provided at the tip of the container;
with
The container is provided with a foam generating part through which the drug solution passes by a user's pressurization operation for instillation and generates a foam-like drug solution when passing through,
An eye drop container characterized by: The eye drop container of claim 1,
The container is
a hollow container body formed of a resin material and deformable by a user's pressurizing operation;
A pouring plug provided with a liquid medicine discharge path provided in a pouring plug mounting hole formed in the container body and penetrating so that the liquid medicine can drip when the container body is oriented downward and a pressurizing operation is performed. When,
with
The foam generation unit is
a non-passage film portion located inside the container body and closer to the pouring plug than the upper surface of the liquid medicine when the pouring plug faces upward, and through which the liquid medicine does not pass; and the pouring plug. and integrally provided with a passing film portion made of a mesh filter that generates bubbles when the chemical solution passes through, facing the
An eye drop container characterized by: The eye drop container of claim 1,
The container is
a hollow container body formed of a resin material and deformable by a user's pressurizing operation;
A pouring plug provided with a liquid medicine discharge path provided in a pouring plug mounting hole formed in the container body and penetrating so that the liquid medicine can drip when the container body is oriented downward and a pressurizing operation is performed. When,
with
The foam generation unit is
A passage film portion made of a mesh filter that is arranged upstream of the chemical liquid discharge path in the downward direction of the chemical liquid droplet and generates bubbles when the chemical liquid passes through,
An eye drop container characterized by: The eye drop container according to claim 3,
The passage membrane part is
At least two or more layers with finer mesh density so as to gradually refine the bubbles when the chemical passes through,
An eye drop container characterized by: The eye drop container of claim 1,
The container is
a hollow container body formed of a resin material and deformable by a user's pressurizing operation;
A pouring plug provided with a liquid medicine discharge path provided in a pouring plug mounting hole formed in the container body and penetrating so that the liquid medicine can drip when the container body is oriented downward and a pressurizing operation is performed. When,
with
The foam generation unit is
A bubble generation path including a plurality of through-holes arranged upstream of the chemical liquid ejection path in the downward direction of the chemical droplet and generating bubbles by a cavitation effect when the chemical liquid passes through,
An eye drop container characterized by: The eye drop container according to any one of claims 1 to 5,
The chemical liquid has a viscosity such that it foams when passing through the foam generation unit.
An eye drop container characterized by:

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