JPH0928764A - Injection container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the injection and mixing of liquid medicine etc., without generating contamination and with an easy operation in a short time. SOLUTION: This injection container 1A is constituted mainly of a bottomed container main body 30, a gasket 10 housed slidably in the container main body 30, a double ended needle 20 provided with a first needle tube 21, a second needle tube 22, an expansion part 23 and a collar part 27, a wrapping member 50 which wraps the first needle tube 21, and a cover 40 which seals the opining part 31 or the container main body 30. The double ended needle 20 can be moved to a first position in a state in which the collar part 27 is fitted in the hole 11 of the gasket 10 and a second position in which it is fitted in the hole 12 of the gasket, and the second needle tube 22 is pierced through a film 15 at the second position, and the liquid medicine 60 are discharged in the container main body 30 via the inner cavity 26 of the double ended needle 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection container, and more particularly to an injection container used for blending drug solutions.

[0002]

2. Description of the Related Art Prior to administration of an infusion to a patient, drugs such as vitamins, heparin and antibiotics are added to the infusion filled in the infusion bag as required. I have.

In order to mix such drugs, first, the puncture needle of the syringe is inserted into the elastic stopper of the infusion bag, the plunger is pulled to collect the infusion solution in the infusion bag, and then the collected infusion solution is collected. Transfer to a container containing the drug to be blended (powdered), dissolve and mix the drug in the container, then again suck and sample the drug mixture with the syringe,
This is performed by inserting a puncture needle of a syringe into an elastic stopper of an infusion bag and pushing a plunger to inject the drug mixture into the infusion bag.

Further, a puncture needle of a syringe is pierced into a vial containing a drug solution, the plunger is pulled to collect the drug solution in the vial into the syringe, and then the puncture needle of the syringe is elastically plugged in an infusion bag. It is carried out by piercing the skin and pushing the plunger to inject the drug solution into the infusion bag.

[0005] However, the composition of such a chemical solution is as follows.
There is a disadvantage that the operation procedure is complicated and the time required for blending is long. In particular, prompt response is essential for emergency patients, but it is disadvantageous when formulating a drug solution to be administered to such patients. Furthermore, since most of the mixing operation of the above-mentioned drug solution, particularly the dissolution and mixing of the drug is carried out in a state of being in contact with the atmosphere, there is a risk of bacterial contamination or contamination with foreign matter.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide an infusion container which can be used for injecting and mixing chemicals in a short time with a simple operation without causing contamination.

[0007]

This and other objects are achieved by the present invention which is defined below as (1) to (11).

(1) A bottomed cylindrical container body, a gasket capable of sliding in a liquid-tight manner along the inner surface of the container body, and a double-ended needle installed on the gasket and movable in the sliding direction of the gasket. And, the gasket has a piercing part that can be pierced by one needle tube of the double-ended needle, while moving the double-ended needle with respect to the gasket to pierce the piercing part, An infusion container, characterized in that a gasket is slid toward a bottom side of the container body to discharge fluid in the container body via the double-ended needle.

(2) Positions of the double-ended needle with respect to the gasket are a first position where the one needle tube is not pierced by the piercing part and a second position where the piercing part is pierced. The infusion container according to (1) above, which has a positioning means for positioning so as to obtain

(3) The infusion container according to (2), wherein the positioning means has a function of restraining the double-ended needle in the second position from moving to the first position.

(4) The infusion container according to any one of the above (1) to (3), which has a position regulation means for regulating the position of the double-ended needle with respect to the piercing portion of the one needle tube.

(5) An encapsulating member that encloses at least the needle tip of the needle tube and is pierceable by the needle tube is attached to the other needle tube of the double-ended needle. The infusion container according to any one of 1.

(6) The infusion container according to any one of the above (1) to (5), which has a sealing member for sealing the opening of the container body so as to be opened.

(7) The infusion container according to any one of the above (1) to (6), wherein the bottom of the container body and the bottom of the gasket have a concavo-convex shape so that they can fit each other.

(8) The injection container according to any one of (1) to (7), wherein the double-ended needle is made of synthetic resin.

(9) The infusion container according to any one of (1) to (8), wherein a drug solution is contained in the container body.

(10) The injection container according to any one of the above (1) to (9), further having a holder connectable to the injection container.

(11) The holder has an outer cylinder and an injection needle, and in a state where the injection container and the holder are connected to each other, the fluid in the container body discharged through the double-ended needle is The infusion container according to (10) above, which is configured to be supplied to the inner cavity of the injection needle.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION The injection container of the present invention will be described below in detail with reference to the preferred embodiments of the accompanying drawings.

FIG. 1 is a vertical sectional view showing a first embodiment of the injection container of the present invention, and FIGS. 2 and 3 are vertical sectional views showing the usage state of the injection container shown in FIG. 1, respectively. For convenience of explanation, the upper side of these figures will be referred to as "upper" or "tip", and the lower side will be referred to as "lower" or "proximal end".

As shown in FIG. 1, the injection container 1A of the present invention.
Is mainly composed of the gasket 10, the double-ended needle 20, the container body 30, the lid 40, and the encapsulating member 50.
The container body 30 is composed of a bottomed cylindrical body having an opening 31 at the tip, and is made of a rigid material having a predetermined rigidity.

As the constituent material of the container body 30, for example, polypropylene, polyethylene, polystyrene, polyamide, polycarbonate, polyvinyl chloride, poly-
Various resins such as (4-methylpentene-1), acrylic resins, acrylonitrile-butadiene-styrene copolymers, polyesters such as polyethylene terephthalate, butadiene-styrene copolymers, and cyclic polyolefins may be mentioned. Is easy,
Resins such as polypropylene and cyclic polyolefin are preferred. The constituent material of the container body 30 is preferably substantially transparent or translucent in order to ensure the internal visibility.

In addition to the above-mentioned materials, the container body 30 is
For example, it may be made of a metal material such as stainless steel, titanium, or aluminum, or a ceramic material such as glass or alumina.

At the center of the bottom (lower part) of the container body 30, there is formed a convex portion 32 projecting to the inside of the container body. Further, a tapered portion 33 is formed on the inner peripheral surface near the bottom of the container body 30. In the container body 30,
The gasket 10 is the most proximal end side (bottom side) of the container body 30.
When moved to, the concave portion 14 and the tapered portion 16 of the gasket 10 are fitted or approached to the convex portion 32 and the tapered portion 33 of the container body 30, respectively. As a result, the gasket 10 is moved to the base end side of the container body 30 and the container body 30
When the drug solution 60 is discharged from the inside, the remaining amount (dead volume) of the drug solution 60 can be reduced regardless of the posture of the container body 30. Although not shown, the container body 30
A scale indicating the amount of the chemical liquid 60 may be provided on the outer peripheral surface of the.

Into the container body 30, a gasket 10 which can slide in a liquid-tight manner along the inner peripheral surface of the container body 30 is inserted. The gasket 10 is made of various rubber materials such as natural rubber, butyl rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, and silicone rubber (particularly vulcanized), polyurethane-based, polyester-based, polyamide-based, It is a substantially columnar member made of an elastic material such as various olefin-based or styrene-based elastomers, or a mixture thereof.

The gasket 10 is not limited to the one made of the elastic material as a whole, and may be made of at least the protrusions 17, the ribs 12, and the membrane 15 made of the elastic material.

On the outer peripheral surface of the gasket 10, a plurality of ring-shaped projections 17 are formed over the entire circumference. When the gasket 10 slides, the protrusion 17 is provided on the container body 1
It has a function of closely adhering to the inner peripheral surface of No. 0, maintaining good air-tightness and liquid-tightness, and maintaining appropriate slidability.

Length of gasket 10 (length in sliding direction)
Is the gasket 1 from the axial length of the inner surface of the container body 30.
The length is smaller than the length obtained by subtracting the length of the double-ended needle 20 protruding from zero.

In order to maintain the airtightness and liquid-tightness of the gasket 10 with respect to the container body 30, the maximum outer diameter of the gasket 10, that is, the outer diameter of the ring-shaped protrusion 17 is set to the container body 30. It is preferably smaller than the inner diameter.

Further, inside the gasket 10, a disk-shaped hole 11 and a disk-shaped hole 12 spaced apart from the hole 11 by a predetermined distance are formed from the front end side.
The base end portion (bottom portion) is formed with a recess 14 that opens to the base end surface of the gasket.

In this case, the holes 11 and 12 are communicated with each other near the centers thereof, and a ring-shaped rib 13 protruding toward the centers is formed between the holes 11 and 12. Also,
A second needle tube 22 described later is provided between the hole 12 and the recess 14.
Thus, a pierceable film (piercing part) 15 is formed.

A ring-shaped rib 18 protruding toward the center is formed on the upper portion of the hole 11. The rib 18 has a function of preventing the double-ended needle 20 from falling off the gasket 10. The inner diameter of the rib 18 is substantially equal to or slightly smaller than the outer diameter of the enlarged diameter portion 23 of the double-ended needle 20 described later. Further, the inner diameter of the rib 13 is equal to that of the rib 1.
8 is approximately equal to or slightly larger than the inner diameter of 8.

In this embodiment, the ribs 13 and 18 are provided on the entire inner circumference of the gasket 10. However, the present invention is not limited to this, and the ribs 13 and 18 are provided partially (for example, intermittently) along the circumferential direction. It may be.

Further, a taper portion 16 having an outer diameter gradually decreasing toward the base end is provided on the base end side outer circumference (bottom outer circumference) of the gasket 10. This improves the ease of assembly when the gasket 10 is inserted and assembled from the opening of the container body 30.

Such a gasket 10 has a double-ended needle 2
0 is set. The double-ended needle 20 has a first needle tube 21 on the distal end side, a second needle tube 22 on the proximal end side, and an enlarged diameter portion 23 located in the middle thereof, and is formed at the needle tip of the first needle tube 21. The side hole 24 and the hole 25 formed at the needle tip of the second needle tube 22 are connected by an inner cavity 26.

A sharp cutting edge is formed on each of the first needle tube 21 and the second needle tube 22. Length of the first needle tube 21 (projection length from the tip end surface of the expanded diameter portion 23)
Is such that at least the side hole 24 penetrates into the infusion bag 100 when the first needle tube 21 is inserted into the mixed injection port 110 of the infusion bag 100 described later.

Since the expanded diameter portion 23 has a larger outer diameter than the outer diameter of the first needle tube 21, the first needle tube 21 is at the tip of the expanded diameter portion 23 and the mixed injection port of the infusion bag 100 is used. 1
When it is pierced by 10, it has a function as a stopper for preventing the first needle tube 21 from being pierced deeper than necessary and making a large incision in the mixed injection port 110.

Further, since the outer diameter of the enlarged diameter portion 23 is substantially equal to or slightly larger than the inner diameter of the rib 18, the straightness of movement of the double-ended needle 20 can be improved. Also,
At the base end of the enlarged diameter portion 23 of the double-ended needle 20, a disc-shaped collar portion 27 having an outer diameter larger than that of the enlarged diameter portion 23 is formed.

The position of the double-ended needle 20 with respect to the gasket 10 is determined by the flange portion 27, the holes 11 and 12, and the ribs 13 and 18 in a state where the second needle tube 22 is not pierced by the membrane 15. Positioning means for positioning the first position and the second position in which the membrane 15 has been pierced are configured. That is, the collar portion 27 includes the holes 11 and 1
2 and the double-ended needle 2 when the hole 11 is fitted.
0 indicates a state in which the second needle tube 22 has not penetrated the membrane 15 (first position), and when the double-ended needle 20 is fitted in the hole 12, the second needle tube 22 penetrates the membrane 15 in the double-ended needle 20. State (second
Position).

When the flange 27 moves from the hole 11 to the hole 12, the rib 13 elastically deforms and moves beyond the rib 13. In this case, a curved convex surface 28 is formed on the outer peripheral portion of the collar portion 27 such that the outer diameter of the upper peripheral edge of the collar portion 27 serves as an edge and the outer diameter thereof gradually decreases toward the base end direction.
The curved convex surface 28 assists the movement of the collar portion 27 from the hole 11 to the hole 12, but in the opposite direction, that is, the hole 1 of the collar portion 27.
The movement from 2 to the hole 11 is configured to be suppressed. As a result, the second needle tube 2 once pierced through the membrane 15
2 is prevented from coming off the membrane 15. Further, when the collar portion 27 is fitted in the hole 11, the collar portion 27 is attached to the rib 1
It is also prevented that the double-ended needle 20 moves beyond 8 to the tip side of the gasket 10 and is separated from the gasket.

It is preferable that the double-ended needle 20 as described above be integrally formed of synthetic resin material. As the synthetic resin material forming the double-ended needle 20, for example, polypropylene, polyethylene, polystyrene, polyamide, polycarbonate, polyvinyl chloride, poly-
Examples include (4-methylpentene-1), acrylic resin, acrylonitrile-butadiene-styrene copolymer, polyester such as polyethylene terephthalate, butadiene-styrene copolymer, cyclic polyolefin resin, and polyphenylene sulfide. Polycarbonate, cyclic polyolefin resin, and polyphenylene sulfide are preferable because they are easy to obtain and the strength of a sharp needle is easily secured. In addition, in order to secure strength, glass fiber, carbon fiber,
Reinforcing fibers such as aramid fibers may be added.

The double-ended needle 20 may be made of, for example, various metal materials such as stainless steel, titanium and aluminum, and various ceramic materials such as glass and alumina.

A ring-shaped projection 19 is preferably formed integrally with the membrane 15 on the upper surface of the membrane 15 as a position regulating means for regulating the puncture position of the second needle tube 22 into the membrane 15. . With this protrusion 19, the second needle tube 22
The needle tip is regulated so that it is located inside the protrusion 19, and the puncture position is constant.

In the vicinity of the joint portion of the collar portion 27 with the second needle tube 22, the collar portion 27 is fitted into the hole 12 and the second needle tube 2
A ring-shaped groove 29 is formed in which the protrusion 19 is accommodated when the film 2 penetrates the membrane 15. As a result, it is possible to improve the straightness of the movement without hindering the movement of the double-ended needle 20.

The first needle tube 21 of the double-ended needle 20 projects toward the tip side from the tip end surface of the gasket 10, and the encapsulating member 50 that encloses at least the needle tip of the first needle tube 21 is provided around the first needle tube 21. is set up. The encapsulating member 50 has a function of preventing the first needle tube 21 from being contaminated when not in use and maintaining a sterile state, and has a side hole 24 after the second needle tube 22 punctures the membrane 15.
It has a function of preventing liquid leakage from the.

The envelope member 50 as described above is made of, for example, a film made of the same material as the gasket 10.
A material that can be easily pierced by the needle tip of the first needle tube 21 is preferably used. The rear end of the envelope member 50 is fitted and fixed in a ring-shaped groove 231 formed at the tip of the expanded diameter portion 23. In addition, the envelope member 5 in this embodiment
0 has a hemispherical tip, but the tip shape is
The shape is not limited to this, and may be, for example, a planar shape.

In this embodiment, the chemical solution 60 is enclosed in the space defined by the gasket 10 in the container body 30. Specific examples of the drug solution 60 include vitamins (multivitamins), various amino acids, antithrombotic agents such as heparin, insulin, antibiotics, antitumor agents, analgesics, cardiotonics, intravenous anesthetics, antiparkinson agents. , Therapeutic agents for ulcers, corticosteroids, agents for arrhythmia, correction electrolytes and the like. In the present invention, in the container body 30,
Instead of the drug solution 60, a solid (for example, powdery or granular) drug may be put in and dissolved. In this case, the gasket 1 in the container body 30
It is preferable that the space partitioned with 0 is in a reduced pressure state.

At the tip of the container body 30, the opening 3 is formed.
A lid 40 is provided as a sealing member that seals 1 so that it can be opened. As a result, the sterilized state can be maintained until just before use. The lid 40 in the present embodiment is detachably attached (fitted) to the opening 31 of the container body 30 and is detached at the time of use. Although not shown, the lid 40 may have a structure in which it is attached to the tip of the container body 30 by screwing.

In addition, in the disposable injection container 1A, instead of the lid 40, the opening 3 is adhered to the front end surface of the container body 30 to seal the opening 31, and the opening 3 is removed.
You may provide the film which opens 1. Further, the container body 30 and the lid body may be integrally molded by the same member via the thin wall portion, and the thin wall portion may be broken and opened. With these configurations, the same effect as described above can be obtained.

As the constituent material of the lid 40, in addition to the elastic material, for example, polypropylene, polyethylene, polystyrene, polyamide, polycarbonate, polyvinyl chloride, poly- (4-methylpentene-1), acrylic resin, acrylonitrile- Examples thereof include a butadiene-styrene copolymer, a polyester such as polyethylene terephthalate, various resins such as a butadiene-styrene copolymer, or a mixture of the elastic material and these resins.

Next, based on FIGS. 1 to 3, an injection container 1A is provided.
How to use is explained. An unused injection container 1A shown in FIG. 1 is prepared, and a lid 4 is inserted from the container body 30.
Remove 0. Next, as shown in FIG. 2, one of the infusion bags containing the infusion solution 120 to be mixed with the drug solution 60 is placed.
A double-ended needle 20 provided on the gasket 10 at a mixed injection port 00 (consisting of a film made of an elastic material) of 00.
The first needle tube 21 side is pressed against and the injection container 1A is pressed in the distal direction. As a result, as shown in FIG. 2, the first needle tube 21 penetrates the mixed injection port 110, and the needle tip thereof enters the infusion bag 100. Further, at this time, the end of the encapsulating member 50 is pierced by the first needle tube 21 and pressed by the end surface of the enlarged diameter portion 23 and the mixed injection port 110 toward the proximal end side to form a bellows. Folded into a shape.

When the pressing force of the double-ended needle 20 against the mixed injection port 110 is further increased, the double-ended needle 20 moves with respect to the gasket 10 from the first position to the second position. That is, the collar portion 27 fitted in the hole 11 moves over the rib 13 toward the base end side and fits in the hole 12. With this movement, the second needle tube 22 penetrates the membrane 15 in the inner portion surrounded by the ring-shaped protrusions 19, and the inside of the container body 30 and the inside of the infusion bag 100 are inside the double-ended needle 20. It communicates through the cavity 26.

Next, as shown by the arrow in FIG. 2, the base end of the container body 30 is pressed toward the tip. As a result, the gasket 10 slides in the proximal direction with respect to the container body 30,
Since the volume of the space surrounded by the container body 30 and the gasket 10 is reduced, the chemical liquid 60 in the container body 30 is recessed 1
4, through the hole 25, the lumen 26, and the side hole 24 in this order, and is injected into the infusion bag 100 and mixed with the infusion solution 120.

As shown in FIG. 3, when the gasket 10 moves to the most proximal side (bottom side) of the container body 30, the discharge of the chemical solution 60 from the container body 30 is completed. At this time,
Since the concave portion 14 of the gasket 10 and the convex portion 32 of the container body 30 are fitted to each other and the taper portion 16 of the gasket 10 and the taper portion 33 of the container body 30 are close to each other, the residual amount of the chemical solution 60 is reduced.

After the injection of the drug solution 60 into the infusion bag 100 is completed as described above, the first needle tube 21 is pulled out from the mixed injection port 110. At this time, the encapsulating member 50 that has been folded into a bellows shape is instantly restored to its original shape by its elastic force, and encapsulates the first needle tube 21 again, so that liquid leaks from the side hole 24 and the surroundings. Is prevented from scattering.

By the action of the re-sealing property of the covering member 50 as described above, the chemical solution 60 remaining in the container body 30 is also kept in a sterile state. Further, due to the action of the re-sealability of the mixed injection port 110, the inside of the infusion bag 100 is kept sterile.

It should be noted that not only the case where the entire amount of the drug solution 60 in the container body 30 is injected at one time, but the drug solution 60 in the container body 30 is injected into the same or different infusion bags 100 or the like in multiple times ( It is also possible to dispense. In this case, the gasket 10 is stopped at a desired position in the longitudinal direction of the container body 30, and the above operation is repeated.

FIG. 4 is a vertical sectional view showing a second embodiment of the injection container of the present invention. The injection container 1B shown in the figure is the same as the injection container 1A except that the structure of the gasket 10B is different.

That is, the gasket 10B in the injection container 1B has a cup-shaped recess 70 formed at the tip thereof, into which the lower end portion (near the mixed injection port 110) 130 of the infusion bag 100 can be fitted. Then, the first needle tube 21
Are stored almost in the center of the recess 70.

When the first needle tube 21 is inserted into the mixed injection port 110, the lower end portion 130 of the infusion bag 100 is recessed.
0 is fitted. Thereby, the gasket 1 of the double-ended needle 20
The movement toward the base end side with respect to 0 and the sliding of the gasket 30 in the container body 30 can be stably performed.

Although not shown, the lower end portion 130
A male screw and a female screw may be formed on the outer peripheral surface of the concave portion 70 and the outer peripheral surface of the concave portion 70, respectively, and the lower end portion 130 and the concave portion 70 may be screwed together.

FIG. 5 is a longitudinal sectional view showing a third embodiment of the injection container of the present invention. The injection container 1C shown in the figure is used as a syringe, and is the same as the injection container 1A except that the structure of the gasket 10C is different.

That is, the gasket 10C in the injection container 1C has the tip of the gasket 10C attached to the injection needle 1 of the holder 140.
A substantially cylindrical recess 8 into which the base end of 60 can be fitted (screwed)
0 is formed. A female screw 81 is formed on the inner surface of the recess 80. Further, the first needle tube 21 is housed in the recess 80 substantially at the center thereof.

On the other hand, the holder 140 is connected to the injection container 1C, and is fixed to (or integrally formed with) the outer cylinder 150 having a bottomed cylindrical shape and the bottom of the outer cylinder 150 substantially concentrically with the outer cylinder 150. ) Injection needle 160.

The tip side of the injection needle 160 projects in the tip direction from the tip (bottom portion) of the outer cylinder 150, and a sharp needle tip 162 is formed at the tip. Further, on the outer periphery of the proximal end portion of the injection needle 160, a male screw 17 that is screwed with the female screw 81.
0 is formed.

A film 180 for sealing the inner cavity 161 of the injection needle 160 is airtightly attached (or fitted) to the base end surface of the injection needle 160. The film 180 is made of the elastic material described above.

Infusion container 1C with lid 40 removed
By rotating the holder in a predetermined direction with respect to the holder 140,
When the base end portion of 60 is screwed into the recess 80 of the gasket 10C, the first needle tube 21 penetrates the encapsulating member 50 and the membrane 180, and the needle tip thereof enters the inner cavity 161 of the injection needle 160. In this state, as described above, when the injection container 1C is pressed and moved in the distal direction, the double-ended needle 20 causes the gasket 10 to move.
With respect to C, the second needle tube 22 moves from the first position to the second position to pierce the membrane 15, and the gasket 10C
Slides in the proximal direction with respect to the container body 30,
The drug solution 60 inside the recess 14, the hole 25, the lumen 26, the side hole 2
4, through the lumen 161 in order, and then the needle tip 162 of the injection needle 160.
Erupts from Although the injection container of the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to these.

[0068]

As described above, according to the injection container of the present invention, it is possible to inject a liquid, such as a mixture of a chemical liquid, into a bag in a short time with a simple operation.

Further, during the operation, since there are few occasions where various places such as the inside of the container come into contact with the outside air, it is possible to prevent bacterial contamination and contamination of foreign matters. In particular, when the encapsulating member is provided or when the sealing member is provided, the effect is more remarkably exhibited.

Further, by setting the amount of the drug or the like to be injected in advance, it is possible to prevent a mixing mistake. Further, when the positioning means is provided or when the position regulating means is provided, the piercing of the piercing part by the movement of the double-ended needle can be performed more reliably and stably. Further, when the bottom portion of the container body and the bottom portion of the gasket are formed in a concavo-convex shape that can be fitted to each other, the chemical liquid or the like in the container body can be discharged without waste.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of an injection container of the present invention.

FIG. 2 is a vertical cross-sectional view showing a usage state of the injection container shown in FIG.

FIG. 3 is a vertical cross-sectional view showing a usage state of the injection container shown in FIG.

FIG. 4 is a vertical sectional view showing a second embodiment of the injection container of the present invention.

FIG. 5 is a vertical sectional view showing a third embodiment of the injection container of the present invention.

[Explanation of Codes] 1A, 1B, 1C Injection container 10, 10B, 10C Gasket 11, 12 Hole 13 Rib 14 Recess 15 Membrane 16 Tapered portion 17 Projection 18 Rib 19 Projection 20 Double-ended needle 21 First needle tube 22 Second Needle tube 23 Expanded portion 231 Groove 24 Side hole 25 Hole 26 Inner cavity 27 Collar portion 28 Curved convex surface 29 Groove portion 30 Container body 31 Opening portion 32 Convex portion 33 Tapered portion 40 Lid body 50 Encapsulating member 60 Chemical liquid 70, 80 Recessed portion 81 Female screw 100 Infusion bag 110 Mixed injection port 120 Infusion 130 Infusion 140 Lower end 150 Outer cylinder 160 Injection needle 161 Lumen 162 Needle tip 170 Male screw 180 Membrane

Claims (11)

[Claims] 1. A bottomed cylindrical container body, a gasket capable of sliding in a liquid-tight manner along an inner surface of the container body, and a double-ended needle installed on the gasket and movable in a sliding direction of the gasket. The gasket has a piercing portion that can be pierced by one of the double-ended needles, and the double-ended needle is moved relative to the gasket to pierce the piercing portion, and the gasket Is slid to the bottom side of the container body, and the fluid in the container body is discharged through the double-ended needle. 2. The position of the double-ended needle with respect to the gasket is defined as a first position where the one needle tube is not pierced by the piercing part and a second position where the piercing part is pierced. The infusion container according to claim 1, further comprising positioning means for removably positioning. 3. The infusion container according to claim 2, wherein the positioning means has a function of preventing the double-ended needle in the second position from moving to the first position. 4. The infusion container according to any one of claims 1 to 3, further comprising a position regulating means that regulates a position of the double-ended needle with respect to the piercing portion of the one needle tube. 5. The encapsulating member that encloses at least the needle tip of the needle tube and is pierceable by the needle tube is attached to the other needle tube of the double-ended needle. Infusion container described. 6. The injection container according to claim 1, further comprising a sealing member that seals the opening of the container body so that the opening can be opened. 7. The infusion container according to claim 1, wherein a bottom portion of the container body and a bottom portion of the gasket have an irregular shape that can be fitted to each other. 8. The infusion container according to claim 1, wherein the double-ended needle is made of synthetic resin. 9. The infusion container according to claim 1, wherein a drug solution is stored inside the container body. 10. The injection container according to claim 1, further comprising a holder connectable to the injection container. 11. The holder has an outer cylinder and an injection needle, and in a state in which the injection container and the holder are connected to each other, the fluid in the container main body discharged through the double-ended needle is The infusion container according to claim 10, wherein the infusion container is configured to be supplied to the lumen of the injection needle.