JPH04132554A - Parenteral fluid container - Google Patents

Abstract

PURPOSE:To enable accurate communication between a drug container and a flexible liquid container by arranging a communication means made up of a communication pipe having a diameter expanding part, a friction plug member sealing an opening on the side of the drug container of the communication pipe and a cap-shaped moving member including a sticking needle projecting axially from a top face toward a plug of the drug container. CONSTITUTION:When a hanger 36 is removed and a finger is put on a flange 25 of an outer cylinder 24 to force the part of a lid 32. as a mouth part 31 of a vial 30 is made up of a rubber film in the center thereof, a tip blade of a sticking needle 48 pierces it. Under such a condition, with the further forcing of the vial 30, this action force acts on a rubber plug 44 through a tail end of the sticking needle 48 and overcomes a friction force with a connecting pipe 42 so that the rubber plug 44 is gotten down into a diameter expanding part 42a of the connecting pipe 42. At the position of the cap-shaped moving member 46. the rubber plug 44 is free in the diameter expanding part 42a so that a gap is generated in the perimeter thereof to make the inside of the vial 30 communicate with the inside of a liquid container 10. Under such a condition, an internal dissolving liquid is fed into or returned from the vial 30 by pressing or kneading the flexible liquid container 10 thereby enabling the dissolving of a powder drug in the vial 30.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an infusion container used in the medical field, and in particular to a kit that allows powdered medicine to be dissolved in a dissolving solution or diluting solution with a simple operation immediately before use. Regarding the product.

[Prior Art] Kit products that combine pharmaceuticals and medical equipment are used for the purpose of reducing the burden of preparing medications at medical institutions and preventing bacterial contamination and foreign matter contamination.

Infusion solutions used as drip injections are prepared by dissolving powdered drugs in containers such as vials in diluted solutions such as sugar solutions or physiological saline, or because they are used frequently, the mixing process is difficult. Simplicity is desired.

Conventional infusion containers as kit products generally include a drug container whose opening is sealed with a pierceable stopper, which is held in a holding container.
This is connected to a flexible liquid container via an appropriate communication means. For example, as the communication means, a puncture needle is attached to the vial side and a breaking member is attached to the flexible liquid container side. After piercing the rubber stopper of a drug container with a needle, the breakable member is bent by hand to connect the two containers (Top Publication No. 61
-501129), or a device that uses a double-ended needle as a communication means and pierces both the drug container and the liquid container to communicate the two containers.
No. 1277).

[Problems to be Solved by the Invention] However, in the conventional example using a breakable member, it takes time and effort to bend the breakable member, and if the opening by bending is not sufficient, the amount of liquid passing through is small and it takes time to dissolve. This is undesirable because it has the disadvantage of requiring a long time and there is also a risk that fragments of the breakable member may fall off and be mixed into the infusion. In addition, in the conventional example using a double-ended needle, a specially designed braking means is used to control the communication order so that one of the double-ended needles first pierces the stopper of the drug container and then pierces the closing membrane of the flexible liquid container. Since the effect of such a braking means cannot be intuitively seen from the outside, there is a risk that its operation may be confused in an emergency.

The present invention has been made in order to solve the problems of the prior art, and it is possible to reliably seal a liquid container before use, and to connect a drug container and a flexible liquid container with an intuitive and simple operation during use. The purpose of the present invention is to provide an infusion container that can reliably communicate with the patient.

[Means for Solving the Problems] The infusion container of the present invention includes: a holding container that movably holds a drug container whose opening is sealed with a pierceable stopper; a flexible liquid container; A communication means for communicating the inside of the drug container and the inside of the flexible liquid container, the communication means being a communication pipe having an enlarged diameter part with a wide inner diameter in an axially intermediate part;
A cap-like movable member comprising a friction stopper member that seals the opening of the communication tube on the drug container side, and a puncture needle that is inserted from the drug container side of the communication tube and protrudes axially from the top surface toward the stopper of the drug container. It consists of parts. Then, the cap-shaped moving member is in a state in which: (1) the friction plug member located closer to the medicine container than the enlarged diameter portion of the communication tube contacts the tail end of the puncture needle and is prevented from moving toward the flexible liquid container; The puncture needle is at the first position where it can pierce the mouth stopper of the drug container moving toward the flexible liquid container; By coming into contact with the surface and moving further toward the flexible liquid container, the tail end of the puncture needle or the friction plug member can be pushed to take a second position where the friction plug member is dropped into the enlarged diameter portion of the communication tube. It looks like this.

The friction plug member refers to a plug member that utilizes frictional resistance, such as a rubber plug.

The tail end of the puncture needle is preferably formed into a flange shape having a diameter approximately equal to the inner diameter of the communicating tube, and the friction plug member is pushed by this flange portion.

The drug container and its holding container can be separated from the liquid container and the communication means, and the communication means can be covered with a cap, thereby forming a separate kit product.

[Function] In the infusion container according to the present invention having the above configuration, before use, the friction stopper member is located closer to the drug container than the enlarged diameter portion of the communication tube, and the flexible liquid container communicating with the communication tube and the flexible liquid container communicate with the communication tube. The inside is sealed, and this friction plug member comes into contact with the tail end of the puncture needle to prevent the cap-like moving member from moving toward the flexible liquid container.

Therefore, when the drug container held in the holding container is moved toward the flexible liquid container, the puncture needle first pierces the stopper at the mouth of the drug container.

When the drug container is moved further and the opening of the drug container comes into contact with the top surface of the cap-shaped moving member, the pushing force is applied directly to the friction stopper member through the puncture needle inside the cap-shaped moving member. , the friction stopper member begins to move toward the flexible liquid container and is finally dropped into the enlarged diameter portion of the communication pipe.

In this state, the friction stopper member is free to move in the axial direction, so the tail end of the puncture needle is opened, and the inside of the medicine container and the inside of the flexible liquid container are communicated with each other.

[Embodiment] Next, the infusion container of the present invention will be explained based on the embodiment shown in the attached drawings.

FIG. 1 is a cross-sectional view showing the entire infusion container according to an embodiment of the present invention, in which 10 is a flexible liquid container containing a dissolving solution or a diluting solution (hereinafter referred to as dissolving solution), and 20 is a flexible liquid container used as a drug container. A holding container holding the vial 30 and a connecting portion 40 connecting these.

The liquid container 10 is a transparent flexible bag made of a soft resin such as polyvinyl chloride resin, polyolefin resin, ethylene-vinyl acetate copolymer, etc., and the lower end has a numerical opening 12 for taking out the drug solution after dissolving the drug. is formed, and the upper end is fused to the lower end of the connecting part 40 and communicates with the inside of the connecting part 40.

FIG. 2 is a sectional view showing the holding container 20 and the connecting portion 40 in a state before use, that is, a state during transportation or storage.

The holding container 20 consists of an outer cylinder 24 and an inner cylinder 26, and the outer cylinder 2
4 on the liquid container side is screwed to the base of the connecting part 40,
An inner cylinder 26 is removably fitted to the other end. Outer cylinder 24
The flange 25 at the end is used to put your finger on when pushing the inner cylinder 26. There are two protrusions 27 and 28 around the inner cylinder 26.
are formed, and when these protrusions 27 and 28 fit into a circumferential groove 29 formed on the inner surface of the outer cylinder 24, the inner cylinder 2
6 can be fixed in two positions. Inner cylinder 2
The outer end of 6 is closed with a screw cap 32, from which the vial 30 is inserted.

A rubber ring 3 for fixing a vial is installed at the inner end of the inner cylinder 26.
4 is inserted in contact with the inner surface of the outer cylinder 24, and this rubber ring 34 fixes the vial 30, maintains airtightness, and prevents rattling when the inner cylinder 26 is moved.

Reference numeral 36 denotes a hanger, which is fixed to the lid 32 at the position 36a, and its end 36b abuts against the end of the outer cylinder 24 to prevent the inner cylinder 26 from moving when not in use. In this case, as shown in FIGS. 3 and 4, the cut 37a
, 37b so that it can be opened and hung from a suitable location using a hook (not shown) at 36b.

On the other hand, the connecting portion 40 includes a communication tube 42 connected to the upper end opening of the flexible liquid container 10, a rubber stopper 44 as a friction stopper member for sealing the drug container side opening of the communication tube 42, and a drug in the communication tube. Cap-shaped moving member 46 inserted from the container side opening
It is formed by.

The communication pipe 42 has an enlarged diameter portion 42 whose inner diameter is expanded in the axially intermediate portion.
a, the rubber stopper 44 is located outside the enlarged diameter portion 42a to seal the communicating tube 42, and the cap-shaped moving member 46 further covers the end of the communicating tube 42. Cap-shaped moving member 4
6 is integrally provided with a puncture needle 48 that axially pierces the top surface 46a toward the stopper at the vial opening, and its tail end is shaped like a flange with approximately the same diameter as the rubber stopper 44, and the puncture needle 48 axially pierces the top surface 46a toward the stopper at the vial opening. 4
It is in contact with the top surface of 4. Further, protrusions 42b and 42C are provided on the outer periphery of the connecting pipe 42, and these protrusions 42b and 42C are engaged with circumferential grooves 46b and 46c formed on the inner surface of the cap-shaped moving member 46 to move the cap-shaped moving member 46 into two stages. It is fixed in position.

Next, the operation during use will be explained with reference to FIGS. 2, 3, and 4.

First, in the first position of the cap-shaped moving member 46, that is, in a state where the rubber stopper 44 is located outside the enlarged diameter portion 42a of the communication tube 42 and seals the communication tube 42, the tail end of the puncture needle 48 is Since it is in contact with the stopper 44, movement of the cap-shaped moving member 46 toward the liquid container 10 is prevented. In this state, if you remove the hanger 36 and put your finger on the flange 25 of the outer cylinder 24 and push in the screw cap 32, the center of the opening 31 of the vial 30 is formed of a rubber membrane, so the puncture needle 48
The tip of the blade passes through this, resulting in the state shown in FIG. In this state, the opening 31 of the vial 30 is connected to the cap-shaped moving member 4.
When the vial 30 is further pushed in, this acting force acts directly on the rubber stopper 44 via the tail end of the puncture needle 48, and the frictional force between the rubber stopper 44 and the connecting tube 42 is reduced. The rubber stopper 44 overcomes the
will be dropped into.

In the second position of the cap-like moving member 46, the rubber stopper 44 is free within the enlarged diameter portion 42a, so a gap is created around it, and at this stage the inside of the vial 30 and the inside of the liquid container will be communicated.

In this state, by squeezing or squeezing the flexible liquid container 10, the solution in the liquid container 10 is sent into and returned to the vial 30.
Can dissolve powdered drugs within. After dissolution, the tube is attached to the outlet 12 of the liquid container 10 and used as an infusion.

FIG. 5 is a sectional view showing another embodiment of the holding container 20 and the connecting portion 40, which is almost the same as the above embodiment except for the shape of the cap-shaped moving member 50. Therefore, the same members are given the same reference numerals and their explanations will be omitted.

The cap-shaped moving member 50 of this embodiment has a shape in which the periphery of a flange portion 52 at the tail end of the puncture needle 48 stands up in contact with the inner surface of the communication tube 42 and is connected to the top surface 46a.

According to this cap-shaped moving member 50, molding becomes easy and liquid leakage from the communication pipe 42 after the rubber stopper 44 is dropped can be completely prevented.

In the above embodiment, the end of the holding container 20 is secured with a screw cap 32.
Although the screw cap 32 and the inner cylinder 26 are integrally molded, the valve 30 may be inserted from the inside.

"Effect of the Invention J As explained above, the infusion container of the present invention can control the piercing order by balancing the frictional resistance of the friction stopper member and human power without using a complicated communication means for controlling the piercing order. Since the control is performed, the user can reliably establish communication between the drug container and the flexible liquid container by simply pushing the drug container in. Also, the friction stopper member can be connected to the communication tube. Unlike the case of piercing with a puncture needle, the structure allows the closure on the liquid container side to be made strong when not in use, and also prevents rubber particles generated during puncturing from entering the infusion liquid. There is also no fear that it will get mixed in.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the whole of an embodiment of the infusion container according to the present invention, FIG. 2 is a partial sectional view of the same embodiment when not in use, and FIGS. 3 and 4 show the use of the same embodiment. FIG. 5 is a partial sectional view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Flexible liquid container 20... Holding container 30... Drug container (vial) 31... Mouth part 40 of drug container (vial)... Communication part 42... Communication pipe 42a. ... Expanded diameter portion of communication tube 44 ... Friction plug member (rubber plug) 46 ... Cap-like moving member 46a ... Top surface of cap-like moving member 48 ... Puncture needle Fig. 1 Fig. 2 Figure 3 58 Procedural amendment dated December 20, 1991

Claims (1)

[Scope of Claims] A holding container that movably holds a drug container whose mouth is sealed with a pierceable stopper, a flexible liquid container, an interior of the drug container, and a flexible liquid container. In an infusion container, the communication means includes a communication tube having an enlarged inner diameter in an axially intermediate portion thereof, and a friction stopper that seals an opening of the communication tube on the medicine container side. and a cap-shaped moving member that is externally inserted from the medicine container side of the communication tube and has a puncture needle that projects axially from the top surface toward the stopper of the medicine container, (1) the cap-like migration member However, in a state where the friction stopper member located closer to the drug container than the enlarged diameter portion of the communication tube contacts the tail end of the puncture needle and is prevented from moving toward the flexible liquid container, the puncture needle (2) a first position where the opening of the drug container moving toward the flexible liquid container can be pierced; and (2) the opening of the pierced drug container is in contact with the top surface of the cap-like moving member; Further, by moving toward the flexible liquid container side, the tail end of the puncture needle can take a second position by pushing the friction plug member and dropping the friction plug member into the enlarged diameter portion of the communication tube. Infusion container.