JPH06124Y2 - Syringe for container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement of a container-combined syringe called a prefill syringe, in which a predetermined amount of injection liquid is filled in a syringe outer cylinder in advance. .

[Prior Art] As shown in FIG. 7, a conventional syringe that also serves as a container includes a gasket B fitted in a predetermined position in a syringe outer cylinder A,
A predetermined amount of the chemical liquid D is filled between the tube tip portion C and a rubber cap F is externally fitted to the luer taper portion E of the tube tip portion C. The rubber cap F is removed before use, and the luer taper portion E is formed. There was a problem that there was no guarantee whether or not the spout G was contaminated.

On the other hand, this type of syringe is required to be easy to manufacture, assemble, clean and handle during injection.

[Problems to be Solved by the Invention] In view of the above-mentioned situation, the present invention has a simple structure, is easy to wash, dry, sterilize, fill a chemical solution, etc., and is easy to assemble and surely seal. It is an object of the present invention to provide a container-combined syringe that does not leak the injection solution during long-term storage, ensures sterility, and is easy to operate during use.

[Means for Solving the Problems] In order to achieve the above-mentioned problems, the present invention provides a grooved groove portion that is provided around a luer taper portion and a tip of the outer tube in a tube tip portion of an outer tube of a syringe. The luer taper portion, a cup made of a hard elastic material having a tubular portion surrounding the luer taper portion is tightly fitted, and a cap for sealing an outer peripheral area including the luer taper portion is closely attached and fixed to the cup, An easily breakable fragile portion is formed in the cap, and the chemical liquid pouring hole of the cylinder tip portion is closed by a tight plug fitted from the outside,
A chemical liquid is filled in the inner chamber of the outer cylinder between the tip of the cylinder and the gasket tightly fitted in the outer cylinder.

[Operation] The barrel tip portion of the syringe outer barrel of the container-combined syringe according to the present invention is
It has the same shape as the luer taper part of a conventional syringe and is molded integrally with the outer cylinder, and the needle base of an ordinary injection needle is easily fitted to the tip of the cylinder.

As shown in FIG. 1, a cup 6 made of a hard elastic material that is fitted into the barrel tip portion 2 of the outer barrel 1 of the syringe, a cap 7 that seals the luer taper portion 3 of the barrel tip portion 2, and a chemical solution outlet hole. The luer taper portion 3 is composed of three members including a sealing plug 10 for sealing 9
The outer cylinder inner chamber 12 between the gasket 11 fitted in the outer cylinder 1 and the end face of the sealing plug 10 is filled with the chemical liquid 13 with a small number of parts. The structure is sealed, the structure is simple, the cleaning,
Easy to dry and assemble.

When the chemical solution 13 is filled, the gasket 11 is inserted into the outer cylinder 1 through the opening 14 of the outer cylinder 1 with the cup 6, the cap 7 and the sealing plug 10 removed as shown in FIG. After inserting a predetermined amount of the drug solution 13 to a depth 1 where the drug solution 13 is stored, a predetermined amount of the drug solution 13 is injected through the opened drug solution outlet 9, and a tight plug 10 is tightly fitted into the drug solution outlet 9. The cup 6 in which the cap 7 is assembled in advance
By tightly fitting the grooved groove portion 5 around the luer taper portion 3, the filling and sealing of the chemical liquid 13 is completed.

In use, push and bend the tip of the cap 7,
By breaking at the easily breakable fragile portion 8, removing the cap 7, removing the sealing plug 10 from the tube tip portion 2, and then fitting the fitting portion 17 of the needle base 16 shown in FIG. 2 to the luer taper portion 3, The needle portion 19 is an outer cylinder inner chamber 1 which is a liquid medicine sealed chamber.
Since it communicates with the inside of 2, it is easy to open and inject.

When the cap 7 is broken as described above, only the barrel tip 2 and the head of the stopper 10 are present inside the cap 7.
At the time of breaking the tip portion of, the extension that comes into contact with the inner surface of the cap 7 and is contaminated disappears.

At the time of storage, the chemical solution outlet 9 is tightly fitted with a tight stopper 10,
The cap 7 wound around the bottom edge of the cup 6 is closely adhered and fixed together with the cup 6 by the groove groove portion 5 of the cylinder tip portion 2, so that the cylinder tip portion 2 is hermetically shielded from the external atmosphere. Assures sterility.

[Embodiment] FIGS. 1 to 6 show an embodiment, in which a barrel tip portion 2 of a syringe outer barrel 1 is integrally molded with the outer barrel 1 in the same shape as a barrel tip portion of a conventional syringe, and a tip thereof is formed. A luer taper portion 3 is formed on the outer surface of the portion, and is used as a fitting portion for a needle base 16, and a small-diameter chemical solution pouring hole 9 is formed in the center portion from the end portion toward the outer cylinder inner chamber 12. This is a channel for the drug solution 13 when the drug solution 13 is filled or when the drug solution is injected.

An aluminum cap 7 having a shape that seals the entire outer peripheral region including a luer taper portion 3 that is a fitting portion of the needle base 16 and a cup 6 to be described later are provided on the tube tip portion 2 and the luer taper portion 3 and the outer portion. It is fitted and fixed in a concave groove portion 5 which is provided around the cylinder tip 4.

The cup 6 is made of a hard elastic material such as rubber or plastic, and has a cylindrical portion 26 surrounding the outer shape of the luer taper portion 3 with a space, and a bottom surface having a fitting hole 27 fitted into the groove groove portion 5. The part 28 and the part 28 are integrally formed into a cup shape.

As shown in FIGS. 1 and 3, the cap 7 of the illustrated example is formed into a cup shape by a large-diameter portion 20 fitted onto the cup 6 and a small-diameter portion 21 that covers the barrel tip portion 2 and a sealing plug 10 described later. The thin easily breakable weak portion 8 is formed in the continuous portion of the large diameter portion 20 and the small diameter portion 21.
Is a portion to be fastened to the cup 6, and as shown in the first illustration, the large diameter portion 20 is externally fitted to the cup 6 in advance, and the hem portion 22 is wound around the cup 6 to form an integral body. It is of structure.

The sealing plug 10 is made of rubber or plastic and is liquid-tightly fitted into the small hole of the chemical liquid pouring hole 9, and the other end portion has a smaller diameter than the outer diameter of the luer taper portion 3 and is gripped when pulling out from the pouring hole 9. It is considered as a part.

A rubber gasket 11 is fitted into the outer cylinder 1 through an opening 14 in a liquid-tight manner, and an outer cylinder inner chamber 12 between the gasket 11 and the sealing plug 10 is a sealed chamber filled with a predetermined amount of the chemical solution 13. ing.

The container / syringe according to the present invention has the above-described structure, and the gasket 11 is provided in the outer cylinder 1 at a preset position l.
With the cup 6, the cap 7, and the sealing plug 10 removed from the tube tip portion 2, the chemical liquid outlet 9 is opened, and the chemical liquid or the lyophilization chemical is supplied from the outlet 9 Etc. are filled into the inner chamber 12.

After that, the sealing plug 10 was fitted into the pouring hole 9 to seal the opening liquid-tightly, and then the cap 7 was fitted to the cup 6 in advance, and the hem edge 22 was integrally wound and fixed. The cap 7 and the cup 6 are fitted into the concave groove portion 5,
It is fixed to the cylinder tip 2.

In addition, when filling the freeze-dried powdered medicine,
An inert gas such as nitrogen gas may be sealed in the space inside the outer cylinder inner chamber 12.

At the time of injection, when the tip portion of the cap 7, that is, the small diameter portion 21 in the illustrated example is laterally pressed by the fingertip, the small diameter portion 21 is broken at the easily breakable weak portion 8 and separated from the large diameter portion 20, and the tight plug 10 and Since the luer taper portion 3 is exposed, the sealing plug is pulled out from the small hole portion of the cylinder tip, and the needle base 16 of the ordinary injection needle 18 is fitted to the luer taper portion 3 as shown in FIG. The injection preparation is completed by communicating with the drug solution outlet 9 of the portion 2 and exposing the drug solution 13 in the outer cylinder inner chamber 12. An inner cylinder (not shown) is screwed into the gasket 11 in advance using the screw hole 23, and the gasket 1
Pushing 1 is exactly the same as in the conventional container / syringe.

Further, in the embodiment shown in FIG. 4, only the cup 6 is fitted into the barrel tip portion 2 by the concave groove portion 5, and then the chemical liquid is injected from the chemical liquid outlet 9 and the sealing plug 10 is used to After making the chemical solution outlet 9 liquid-tight, the cap 7
Is to be fitted into the cup 6 and fixed by winding at the hem edge 22.

The one shown in FIG. 5 shows a generally used sealing plug 24 for fitting the liquid medicine discharge hole 9 in a liquid-tight manner. The sealing plug 24 is made of a hard elastic material, and the luer taper of the barrel tip portion 2 is shown. The tubular portion 25 fitted to the portion 3 faces the space between the tubular tip portion 2 and the cup 6, and the end surface 25a covering the dispensing hole 9 has a projection 25b tightly fitted to the dispensing hole 9. FIG. 6 shows an example of using a shape in which a cap is formed. After the chemical solution is filled, the sealing plug 24 is tightly fitted, and then the cap 7 is fitted to the cup 6 as shown in FIG. The hem edge 22 is fixed by winding.

The easily breakable fragile portion 8 in the illustrated example is formed of a thin wall portion that is circumferentially provided, but is not limited to this structure.

[Effects] The container-combined syringe according to the present invention has the above-described configuration and operation, and in the state in which the drug solution or the powdered drug is filled from the tube tip portion, the tube tip portion 2 is sealed with the tight plug 10 to remove the drug solution injection hole 9 Is tightly fitted, and the tube tip portion 2 is sealed by the cap 7 and the cup 6, so that the tube tip portion 2 is sealed,
It has the effect of ensuring sterility.

When opening the cap 7, the cap 7 may be broken from the easily fragile fragile portion 8, and since the sealing plug 10 and the barrel tip portion 2 are exposed, the injection preparation operation is easy, and the broken cap 7 cannot be recovered to the old state. It is possible and has the effect of ensuring the virginity of the syringe that also serves as a container.

Further, the shape of the conventional syringe barrel can be used as it is as the shape of the syringe barrel 1 and the barrel tip portion 2. Therefore, the filling of the medicinal solution can be accomplished by inserting the gasket 11 into a predetermined position in advance. It is possible to do it from the drug solution pouring hole 9 of the barrel tip 2 without performing from the opening 14 of the barrel tip, and there are few parts to seal the barrel tip portion 2 and it is easy to handle. Then, it can be used as it is as a syringe.

Since the end portion which is the gripping portion of the tight stopper 10 is thinner than the outer diameter of the tube tip portion 2, the cap 7 and the cup 6 are fitted in advance, and the cap 7 and the cup 6 are wound and fastened together to prepare an integral body. For example, after filling the drug solution, the tight plug 10 is fitted, and the cap 7 and the cup 6 are pressed toward the barrel tip portion 2 to be fitted and fixed by the concave groove portion 5, so that the sealing operation is facilitated. It is a squeal.

Further, there is only the luer taper portion and the stopper in the cap 7, and since there is no member that extends for a long time, there is no contact between the inner surface of the cap and the luer taper portion when the cap breaks, and the breakage is easy and the lure taper portion is contaminated. Is also prevented.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment, FIG. 2 is a vertical sectional side view showing only an essential part of the state shown in FIG. 1 with an injection needle attached, and FIG. 3 is a vertical sectional side view of a cap. 4 is the first
6 is a vertical cross-sectional side view showing only the main part with the cup attached, and FIG. 5 is a vertical cross-sectional side view showing only the main part with the cup and a commonly used cap attached to the tube end. FIG. 7 is a vertical sectional side view showing only a main part of the state shown in FIG. 5 with a cap attached, and FIG. 7 is a vertical sectional side view of a first example of a conventional container / syringe. 1: outer cylinder, 2: cylinder tip part, 3: luer taper part, 4: outer cylinder tip, 5: concave groove part, 6: cup, 7: cap, 8:
Easily breakable fragile part, 9: Closed plug, 10: Chemical solution pouring hole, 11: Gasket, 12: Outer cylinder inner chamber, 13: Chemical solution.

Claims (1)

[Scope of utility model registration request] 1. A recessed groove portion provided around a luer taper portion and a tip of the outer cylinder in a cylinder tip portion of an outer cylinder of a syringe,
The luer taper portion, a cup made of a hard elastic material having a tubular portion surrounding the luer taper portion is tightly fitted, and a cap for sealing an outer peripheral area including the luer taper portion is closely attached and fixed to the cup, The cap is formed with an easily breakable fragile portion, and the chemical liquid pouring hole of the cylinder tip portion is closed by a tight plug fitted from the outside, and is tightly fitted in the cylinder tip portion and the outer cylinder. A syringe that also functions as a container, characterized in that the inner chamber between the gasket and the gasket is filled with a drug solution.