JPH11128313A - Inner cap for eye drop container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily drop a nearly constant amount of a light preparation in the eye one by one independently of inclining a container to any angles. SOLUTION: A cap is provided with a main body 21 mounted to the mouth part of a container 11 and a dome-like head part 23 attached to the tip of the main body 21 through tongue pieces 22, 22.... Liquid chemicals from opening parts 22a, 22a formed by the pieces 22, 22... drop by forming a water drop of nearly fixed size through the part 23 independently of the inclination of the container 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner plug of an eyedropper which can be instilled at an arbitrary angle.

[0002]

2. Description of the Related Art A conventional ophthalmic container is constructed by inserting a cylindrical chip into the mouth of the container. Therefore, in this case, the container can be inverted and positioned directly above the eye surface, and the drug solution contained in the container can be dripped toward the eye surface to be instilled. In addition, the container can seal the contained chemical solution by attaching the cap to the mouth and bringing the top surface of the cap into close contact with the chip.

[0003]

According to the prior art, the container must be turned over and a chemical solution must be dripped, and it is difficult for the user to face the eye greatly and position it directly above the eye surface. However, there has been a problem that it is not easy to drop a certain amount of the drug solution accurately and instill it.

In view of the above-mentioned problems in the prior art, an object of the present invention is to provide a head which is attached to the mouth of a container so that the head is attached to the tip of the main body, so that the container is substantially constant even when the container is inclined at an arbitrary angle. It is an object of the present invention to provide an inner cap of an eye drop container which can be easily instilled by dropping a drug solution in an amount.

[0005]

In order to achieve the above object, the present invention comprises a cylindrical main body attached to the mouth of a container, a head attached to the main body via an elastic tongue. The tongue piece forms an opening between the head and the distal end face of the main body by pushing up the head, and the head is brought into close contact with the distal end face of the main body via the cap, so that the drug solution in the container is released. The gist is to seal.

[0006] The head can be formed in a dome shape, and can be formed at a height smaller than the maximum outer diameter.

The lower surface of the head may be formed as a conical surface.

Further, the tongue piece may have one end continuous with the inner surface of the recess formed on the lower surface of the head and the other end continuous with the tip surface of the main body.

[0009]

According to the structure of the present invention, the elastic tongue pushes up the head to form an opening between the head and the front end surface of the main body. Therefore, when the container is tilted, the liquid medicine from the opening forms a predetermined amount of water droplets between the head and the distal end surface of the main body, and when the container is inverted, it flows to the top of the head, and at the top, the water drops. A fixed amount of water drops is formed. That is, regardless of the inclination of the container, the chemical liquid forms water droplets of substantially the same size, and can be dropped and dripped by a predetermined amount.

[0010] The dome-shaped head can stably guide the chemical solution from the opening to the top, so that the amount of the chemical solution for each drop can be made more uniform.

If the height of the head is smaller than the maximum outer diameter,
The head can be stably adhered to the distal end surface of the main body via the cap.

When the lower surface of the head is formed as a conical surface, the head is uniformly brought into close contact with the inner periphery of the distal end surface of the main body, so that the liquid medicine can be sealed more reliably.

When one end of the tongue is continuous with the inner surface of the recess formed on the lower surface of the head, and the other end is continuous with the tip surface of the main body, the tongue is connected to each of the connecting portions with the head and the main body. In this case, no excessive stress is concentrated, and the intermediate portion smoothly deforms elastically, and there is no possibility of breakage at an early stage.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

The inner stopper 20 of the eyedropper is connected to the mouth 1 of the container 11.
1a, and a head 23 attached to the main body 21 via tongue pieces 22, 22... (FIGS. 1 and 2). However, a cap 12 is attached to the container 11.

The container 11 has a mouth 11 with a male screw 11b.
a is formed in the upper part, and the liquid medicine is stored. The cap 12 has a female screw 12 that fits the male screw 11 b of the container 11.
a is formed on the inner periphery. Inside the cap 12,
A step portion 12b is formed above the female screw 12a, and a holding portion 12c is formed on the top surface.

The body 21, the tongue pieces 22, 22,...
The head 23 is integrally formed of a resin material having elasticity such as low density polyethylene. Body 21
Is formed in a cylindrical shape having a flange 21a in the middle, and the lower part of the flange 21a is press-fitted into the mouth 11a of the container 11. The upper part of the main body 21 is gradually reduced in diameter.

The tongue pieces 22, 22,...
1 are arranged radially on the distal end surface (FIGS. 1 and 3).
The lower end of each tongue piece 22 is laterally connected to the distal end of the main body 21 so as to be continuous with the distal end surface of the main body 21.

The head 23 is formed in a smooth dome shape (FIGS. 1 and 2). The head 23 is formed to have a height h smaller than the maximum outer diameter d, and the lower surface is formed as a downward conical surface that is gentle toward the central axis C. Head 2
On the lower surface of 3, a concave portion 23a is formed on the central axis C. The upper end of each tongue piece 22 is connected to the head 23 so as to be continuous with the inner surface of the recess 23a.

Therefore, the head 23 is attached to the mouth 11 of the container 11.
When the cap 12 is mounted on the cap a, the cap 12 is brought into close contact with the distal end surface of the main body 21 via the holding portion 12c of the cap 12 (FIG. 4)
The chemical in the container 11 can be sealed. The tongue pieces 22, 22... At this time are smoothly elastically deformed in the intermediate portion, and are housed in the main body 21. Further, the cap 12 is connected to the flange 21a of the inner plug 20 through the step 12b.
The inner plug 20 can be airtightly covered by sandwiching the inner plug 20 with the mouth 11a.

When the cap 12 is removed from the mouth 11a of the container 11, the tongue pieces 22, 22... Push up the head 23 to open the openings 22a, 22a between the head 23 and the front end surface of the main body 21. ... can be formed (FIG. 1,
(Fig. 3). Then, when the container 11 is tilted sideways (FIG. 5)
(A), the liquid medicine from the openings 22 a, 22 a... Can form a water droplet W between the head 23 and the front end surface of the main body 21. When the container 11 is in an inverted state (FIG. 2B), the liquid medicine from the openings 22a flows to the top of the head 23, and water droplets W can be formed at the top. The size of the water droplet W at this time is substantially constant irrespective of the inclination of the container 11, and a substantially constant amount of a chemical solution can be dropped and instilled.

In the above description, the tongue pieces 22, 22.
Should be able to stably push up the head 23,
Any number other than that shown may be used, and any shape may be used. In addition, when the liquid medicine is instilled, the container 11 is lightly pressed to discharge an appropriate amount of the liquid medicine. Therefore, the container 11
Is not limited to the illustrated cylindrical shape, and may be formed, for example, in a flat hollow shape.

[0023]

As described above, according to the present invention, the head is attached to the cylindrical main body mounted on the mouth of the container via the elastic tongue, so that the tongue can be formed. By opening the head, an opening can be formed between the head and the distal end surface of the main body, and the liquid medicine from the opening can form a predetermined amount of water droplets regardless of the inclination of the container. Since it is possible, the container can be tilted at an arbitrary angle, and a substantially constant amount of the drug solution can be dripped at a time so that it can be easily instilled.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the overall configuration in a longitudinal section.

FIG. 2 is an explanatory perspective view of the overall configuration.

FIG. 3 is an enlarged cross-sectional view taken along the line XX of FIG. 1;

FIG. 4 is an explanatory view of a use state (1).

FIG. 5 is an explanatory view of a use state (2).

[Explanation of symbols]

 d ... maximum outer diameter h ... height 11 ... container 11a ... mouth 20 ... inner plug 21 ... body 22 ... tongue piece 22a ... opening 23 ... head 23a ... recess

Claims (5)

[Claims] 1. A container comprising: a cylindrical main body attached to a mouth of a container; and a head attached to the main body via an elastic tongue, wherein the tongue is pushed up by the head. An eye drop container, wherein an opening is formed between the head and the distal end surface of the main body, and the liquid medicine in the container is sealed by bringing the head into close contact with the distal end surface of the main body via a cap. Inside plug. 2. The inner plug according to claim 1, wherein the head is formed in a dome shape. 3. The inner cap according to claim 2, wherein the head has a height smaller than a maximum outer diameter. 4. The inner plug according to claim 1, wherein the head has a lower surface formed in a conical surface. 5. The device according to claim 1, wherein one end of the tongue piece is continuous with an inner surface of a concave portion formed on the lower surface of the head, and the other end is continuous with a tip surface of the main body. The inner stopper of the ophthalmic container according to any one of the above.