JPH0226507Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a medicine bottle. More specifically, the present invention relates to a drug solution bottle in which a liquid guide needle is inserted through a rubber stopper so that the drug solution inside can be drawn out.

[Prior Art] Conventional drug bottles include glass bottles with rubber stoppers molded from a chemical-resistant rubber-like elastic material that is less leached of plasticizers and the like when they come into contact with drug solutions, or plastic bottles. There are some that have a rubber stopper whose surface is laminated with film or the like.

A plastic film laminated to the rubber stopper is provided to prevent the chemical solution from coming into direct contact with the rubber.

[Problems that the invention aims to solve] However, in conventional medicine bottles, rubber stoppers made of chemical-resistant rubber-like elastic materials are expensive, and rubber stoppers laminated with plastic film require a large number of man-hours to manufacture. Therefore, there is a problem in that the manufacturing cost is increased in any case.

In view of these circumstances, the present invention aims to provide a medicine bottle that can significantly reduce manufacturing costs.

[Means for Solving the Problems] The liquid medicine bottle of the present invention has a cap having a collar made of chemical-resistant synthetic resin, which is tightly fitted into a rubber body having a cylindrical cavity. A drug liquid bottle comprising a rubber stopper and a bottle body having a step formed at the upper part of the inner periphery of the mouth and a lumen having an inner diameter smaller than the inner diameter of the mouth. In this case, the collar of the cap is in contact with the step of the bottle body.

[Function] In the present invention, when the rubber stopper is inserted into the mouth of the bottle body, the brim of the cap comes into contact with the stepped part, so when the liquid guide needle is inserted through the rubber stopper, the cap does not touch the bottle body. It will no longer be pushed inside. Therefore, it becomes easy to use as a medicine liquid bottle.

The rubber stopper of the present invention can be manufactured by making the stopper body and the cap separately and then fitting them together later. Since the cap itself can be easily mass-produced using a molding method such as extrusion molding or injection molding, the manufacturing cost is low, and the manufacturing cost of the entire medicinal liquid bottle is also reduced.

[Example] Next, embodiments of the present invention will be described.

Fig. 1 is a partially sectional front view of a liquid medicine bottle according to an embodiment of the present invention, Fig. 2 is a partial sectional view of a liquid medicine bottle covered with a rubber stopper, and Fig. 3 is a rubber according to another embodiment. FIG. 3 is a cross-sectional view of the stopper.

In FIG. 1, 1 is a rubber stopper and 2 is a bottle body. The rubber stopper 1 consists of a cap 3 and a stopper body 4 made of rubber.

The cap 3 is provided so that the chemical liquid does not come into direct contact with the rubber stopper 4, and is a cylindrical member with a bottom, and has a radially extending collar 5 formed at its opening. Note that the cap 3 in this embodiment is formed with a peripheral wall 6 extending further upward from the peripheral edge of the collar portion 5.

This cap 3 is preferably molded from synthetic resin having chemical resistance. As used herein, chemical resistance means inactivity against physiological saline, Ringer's solution, nutrients, and other chemical solutions.
As such a synthetic resin material, thermoplastic resins such as polypropylene, polyethylene, and polytetrafluoroethylene are preferred.

Various molding methods can be used, but extrusion molding and injection molding improve mass production and
Preferable for lowering manufacturing costs.

The bottom 7 of the cap 3 is preferably formed with a thin wall because it is necessary to insert a liquid guide needle, etc.
Other parts may be formed thicker.

The cap 3 is fitted into a stopper 4 made of rubber. It is preferable that the outer diameter of the body part 8, which is the part of the plug body 4 that is fitted into the cap 3, be slightly larger than the inner diameter of the cap 3, and that the body part 8 should be tightly fitted to prevent it from easily coming off.

A flange-like large diameter portion 9 is formed in the upper part of the plug body 4, and a cavity 10 is formed in the body portion 8 to facilitate penetration of a liquid guiding needle. Since the rubber material of the stopper 4 is covered with the cap 3, there is no need to use a high-grade rubber that elutes little even when it comes into contact with the chemical solution, and an inexpensive rubber can also be used.

The bottle body 2 is made of glass, and a step 12 is formed at the upper part of the inner periphery of the mouth 11 of the bottle body 2. The stepped portion 12
is formed from a mouth portion 11 and a lumen 13 having an inner diameter somewhat smaller than the inner diameter of the mouth portion 11, and the rubber stopper 1
It is formed in a size that allows the collar 5 to come into contact with it when it is inserted into the mouth 11.

FIG. 2 shows a state in which the rubber stopper 1 is inserted into the mouth 11 of the bottle body 2. In that state,
The collar portion 5 of the cap 3 is in contact with the stepped portion 12. Therefore, in order to draw out the internal chemical solution, the rubber stopper 1
Even when the liquid guide needle 14 or the like is inserted into the bottle, the cap 3 will not fall into the inside of the bottle body 2.

FIG. 3 shows a rubber stopper 1 according to another embodiment. In this embodiment, the cap 3 has a structure in which a peripheral wall 6 is not provided around the periphery of the collar portion 5. In this embodiment as well, it can be suitably used as the lid of the bottle body 2.

[Effects of the invention] With the present invention, there is no direct contact between the rubber stopper and the medicinal solution, and the cap does not fall into the bottle even when the liquid guide needle is inserted, making it easy to use as a medicinal solution bottle. Since only the cap can be manufactured by molding it separately, manufacturing costs can also be reduced.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of a liquid medicine bottle according to an embodiment of the present invention, Fig. 2 is a partial sectional view of a liquid medicine bottle covered with a rubber stopper, and Fig. 3 is a rubber according to another embodiment. FIG. 3 is a cross-sectional view of the stopper. Main symbols in the drawing: 1: Rubber stopper, 2: Bottle body,
3: cap, 4: stopper, 5: collar, 11: mouth, 12: step, 13: lumen.

Claims (1)

[Scope of utility model registration request] A cap with a collar molded from chemical-resistant synthetic resin is tightly fitted into a rubber body with a cylindrical cavity, and a rubber stopper is formed, and a mouth and a mouth are attached to the top of the inner periphery of the mouth. In a medicine liquid bottle, in which a lumen with an inner diameter smaller than the inner diameter of the cap and a bottle body provided with a step formed by the cap are tightly inserted, the collar of the cap is in contact with the step of the bottle body. A medicine bottle.