JPH04253863A - Transfusion container - Google Patents

Abstract

PURPOSE:To provide a transfusion container by allowing the mixing of a dissolution liquid in a flexible container and a medicine in a medicine container keeping aseptic condition. CONSTITUTION:This container is made up of a flexible container 1 holding a dissolution liquid, a capsule 2 with a guide being formed on the internal surface thereof, a medicine container 3 held in the capsule 2, a communication means 1 for communication of the inside of the flexible container 1 with the inside of the medicine container 3, a cap 4 applied airtight on the capsule 2 and a keep member 8 fitted into the bottom part of the medicine container 3. A pair of circular arc cams 48 is formed on the top underside of the cap 4 in an axial symmetry. The cam 48 is engaged with the keep member 8. With the turning of the cap 4, the medicine container 3 moves downward to make the inside of the medicine container 3 communicate with the inside of the flexible container 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an infusion container used for drip injection, and is used in the medical field.

0002

[Prior Art] Conventionally, in medical institutions such as hospitals,
Powdered or freeze-dried drugs in a container such as a vial are dissolved and used as an infusion for intravenous injection. At this time, the container containing the drug and the container containing the solution of the drug are connected using a double-ended needle or The connection is made using a connecting tool such as a connecting tube, and the solution is transferred to a container containing the drug to dissolve the drug.

[0003] However, this operation is complicated and time-consuming, and since the connection hole is made in the container containing the drug in the open air, there is a possibility that the drug inside may become contaminated.

[0004] In order to solve the above-mentioned problems, an infusion container as shown in Japanese Patent Publication No. Sho 61-501129 has been proposed.

As shown in FIG. 23, this infusion container consists of a capsule 122 containing a vial 121 which is a drug container, a flexible container 123 containing a solution having a drug solution outlet, and a tube 124. It is connected by And inside the tube 124 is a vial 1.
A hollow puncture needle 125 is attached to the 21 side, and a breaking member 126 is attached to the flexible container 123 side. The breaking member 126 closes the passage within the tube 124 and prevents fluid flow. capsule 1
A cap 127 made of a flexible member is attached to the top of 22 while maintaining sealing performance. The flexible member is substantially deformable to allow manual downward movement.

In use, the vial 121 is pushed down by pressing the flat central member 129 of the upper cap 127 of the capsule 122 with a finger, and the puncture needle 125 pierces the rubber stopper 128 of the vial 121 to remove the flexible container 123.
and vial 121 are first connected (see Figure 24).
. The break member 126 within the tube 124 is then manually bent, thereby opening the passageway within the tube 124 and allowing the drug and solution to mix.

On the other hand, as a method of communicating the two containers and mixing their contents, it is possible to apply the means shown in FIGS.
(See Publication No. 48).

According to the above-mentioned publication, a groove as shown in FIG. 26 is formed in the neck 102 of the container body 101 in which the medicine L is stored, and the lid 10 is closed before use.
The protrusion 104 of No. 3 is fitted into the groove 105 (see FIG. 25). In use, the lid 103
Once the protrusion 104 is removed from the groove 105,
Next, the lid 103 is fitted into another spiral groove 106 similarly formed in the neck 102 and rotated to move the lid 103 in the direction of the container body 101. As a result, the chemical liquid outlet tube 1 formed at an acute angle
It is said that the lower end 108 of the container body 101 pierces the thin film 109 welded to the mouth of the container body 101 to establish communication with the outside (see FIG. 27).

[0009]

[Problem to be solved by the invention] However, FIG.
In the prior art shown in 24 to 24, the cap 127 is moved downward to push down the vial 121, so the internal pressure of the capsule 122 increases during the communication operation, and the communication operation may not be performed smoothly. be. In addition, when pushing the cap 127 downward with your finger, you may damage the cap 127 with your nail, and the cap 127 may be damaged.
There is also a risk that the material may be torn and sterility may be destroyed.

Furthermore, in the prior art shown in FIGS. 25 to 27, when using the chemical liquid container, that is, when establishing communication between the chemical liquid inside the container and the outside, the lid is removed and then fitted into another groove again. Therefore, there is a risk that the sharp parts of the thin film 109 and the chemical liquid outlet cylinder 107 will be contaminated with bacteria in the atmosphere, and that these bacteria will be mixed into the chemical liquid. Furthermore, since the lid itself moves downward, the internal pressure of the container increases during the communication operation, which may make it difficult to perform the communication operation smoothly.

[0011] In view of the above-mentioned circumstances, an object of the present invention is to provide an infusion container that allows communication to be carried out while maintaining sterility without removing the cap during use, and to which communication can be carried out smoothly. The purpose is

0012

[Means for Solving the Problems] The infusion container of the present invention has the following features:
a) A flexible container containing a dissolving solution or a diluting solution and having a liquid passage section closed with a closing membrane at the upper end;
b) a capsule connected to the flexible container and having a guide formed on its inner surface; and (c) a drug container having a mouth sealed with a pierceable stopper and held within the capsule. (d) a communication means for communicating the interior of the flexible container and the interior of the drug container; (e) a cap airtightly capped on the capsule for lowering the drug container; f) It is equipped with a guide rod that fits into the groove of the guide of the capsule, and a presser member that is fitted to the bottom of the drug container, and a pair of cams made of arc-shaped plates are attached to the lower surface of the top of the cap. The presser member and the cam are symmetrically formed, and when the cap is rotated, the cam moves the drug container downward via the presser member, and the communication means connects the inside of the drug container. It is characterized in that it is configured to communicate with the inside of the flexible container.

[0013]

[Operation] In the present invention, a cam formed on the lower surface of the top of the cap and a presser member fitted to the bottom of the drug container are used to convert the rotational movement of the cap into a downward movement of the presser member. Moreover, since this conversion can be carried out with the cap still on, the invasion of bacteria can be completely prevented. Further, since the cap itself only rotates and does not move downward, the internal pressure of the container does not increase during the communication operation.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the infusion container of the present invention will be explained based on the accompanying drawings.

FIG. 1 is a sectional view of essential parts of an infusion container according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a capsule, FIG. 3 is a plan view of the capsule, and FIG. 4 is an enlarged view of an engaging protrusion of the capsule. ,
FIG. 5 is an enlarged sectional view of the coupling part of the capsule, FIG. 6 is a partially cutaway perspective view of the push-down mechanism, FIG. 7 is a front view of the braking means, FIG. 8 is a plan view of the braking means, and FIG. 9 is piercing order control. 10 is a longitudinal sectional view of the liquid passage section, FIG. 11 is a longitudinal sectional view of the rubber stopper, FIGS. 12 to 14 are sectional views showing the order of the piercing operation in the above embodiment, and FIGS. 16 is a perspective view showing an example of a suspension means, FIG. 17 is a partially cutaway perspective view showing a cap of an infusion container according to another embodiment of the present invention, and FIG. 18 is a horizontal sectional view of the cap attached to a capsule. ,
FIG. 19 is a longitudinal cross-sectional view of a capsule of an infusion container according to the other embodiment, FIG. 20 is a perspective view showing the coupling structure of the capsule and bag of the infusion container in the other embodiment, and FIG. 21 is the other embodiment. FIG. 22 is a partial sectional view showing another example of the puncture needle used in the present invention.

First, the overall configuration of this embodiment will be explained based on FIG. 1.

In the figure, 1 is a flexible container (hereinafter referred to as a bag), 2 is a capsule, 3 is a drug vial (hereinafter simply referred to as a vial) as a drug container, and 4 is a cap.

[0018] The bag 1 is a container for containing a solution, and is made of a highly flexible material such as soft vinyl chloride resin, polyolefin resin, or ethylene-vinyl acetate copolymer. Note that polyolefin resins are preferable because they have excellent chemical resistance and little elution into the solution. bag 1
A liquid passage portion 11 is formed at the upper end, and a chemical solution outlet 13 is formed at the lower end.

The capsule 2 is a substantially cylindrical container for accommodating the vial 3, and is made of a material such as polyolefin resin. The upper end of the capsule 2 is open, and a bottom part 15 is formed at the lower end. Also, the bottom 15
A coupling portion 16 for coupling the liquid passage portion 11 is provided on the lower surface of the
is formed. The liquid passage section 1 is connected to this joint section 16.
By inserting bag 1, capsule 2 and bag 1 are connected.

A vial 3 is housed inside the capsule 2. This vial 3 is a known glass or plastic vial, and a solid drug is placed inside. The vial 3 is stored with its mouth 17 facing downward, and the mouth 17 is sealed with a pierceable rubber stopper. Inside the capsule 2, a braking means 6 to which a puncture needle 7 is fixed is arranged between the opening 17 of the vial 3 and the capsule bottom 15. This braking means 6 controls the order in which the puncture needles 7 are inserted, and the details will be described later.

A cap 4 is airtightly placed over the top of the capsule 2. The cap 4 serves to protect the vial 3 in a sterile manner and also to push down the vial 3. A suspension means 18 is provided on the upper surface of the cap 4. This suspension means 18 is for suspending the infusion container, and is composed of a suspension ring 18a for hanging on a hook and a suspension band 18b, as shown in FIGS.
A type that can be bent is used.

Next, the structure of each part of the infusion container will be explained in detail.

[0023] Figures 2 to 5 show details of the capsule 2. The approximately cylindrical capsule 2 has an upper end portion 21, an intermediate portion 22, and a lower end portion 23 in order from the top along the axial direction. The upper end portion 21 is a portion on which the cap 4 is placed, and an annular engagement protrusion 24 is formed on the outer periphery of the lower end of the upper end portion 21 (see FIG. 4). A guide 25 is formed on the inner wall surface of the capsule 2 from the upper end 21 to the lower end 23 . The guide 25 has sliding grooves 25c formed by two wide vertical ribs 25a and 25b, which are formed at two locations symmetrically with respect to the center axis of the capsule. This guide 25 restrains a pressing member, which will be described later, in a non-rotatable manner and guides movement only in the axial direction.

Further, a guide 26 is formed on the inner wall surface of the capsule 2 at a portion of the intermediate portion 22 at a position shifted by 90° from the guide 25 . This guide 26 has grooves 26c formed by two vertical ribs 26a and 26b, which are also formed in two locations symmetrically with respect to the central axis of the capsule. Further, a hook portion 27 is formed at the lowest stage of the guide 26. The guide 26 restrains the braking means 6 unrotatably, and the hooking portion 27 is provided to control the order in which the braking means 6 is penetrated.

Further, ribs 28 are formed on the inner wall surface of the capsule 2 in the vertical direction (vertical direction in FIG. 2), and these ribs 28 hold the vial 3 vertically within the capsule 2. It is held so that it can move freely in the axial direction when an external force is applied.

A hole 29 is bored in the bottom 15 of the capsule 2 . This hole 29 is a hole through which the puncture needle 7 is passed, and into which a rubber stopper 41, which will be described later, is inserted.

The coupling portion 16 is formed on the lower surface of the bottom portion 15 coaxially with the hole 29 . As shown in FIG. 5, this coupling part 16 is a double cylinder, and the upper end of the liquid passage part 11 is inserted into the annular groove 31 between them. An engagement groove 32 is formed in the inner wall of the groove 31.

Next, a mechanism for pushing down the container using the cap 4 will be explained based on FIG.

The cap 4 is a cylindrical body having a top portion 46 and a cylindrical side wall 47 (a suspension means 18 is provided on the upper surface of the top portion 46, but is not shown in FIG. 6). An annular engagement groove 50 is formed in the inner peripheral surface of the lower end of the side wall 47 . When the cap 4 is placed over the upper end portion 21 of the capsule 2, the engagement groove 50 is fitted into the engagement protrusion 24 of the capsule 2, and the cap 4 is attached to the capsule 2 so as to be rotatable and immovable in the axial direction. Two cams 48 are formed on the lower surface of the top 46 of the cap 4. This cam 48
are arc-shaped plates formed over an angle of approximately 140°, and are provided in a pair axially symmetrically. The height of each cam 48 changes linearly. On the other hand, a vial 3 is placed inside the capsule 2, and the bottom 3a of the vial 3 is located at the top opening of the capsule 2. A presser member 8 is fitted to the bottom 3a of the vial 3.

The holding member 8 is a frame-shaped member consisting of a beam 51 and guide rods 52 hanging from both ends thereof, and a cam follower portion 53 formed on an inclined surface is formed at the upper end of each guide rod 52. The guide rod 52 fits into a groove 25c of the guide 25 formed on the inner surface of the capsule 2, and is guided so as to be non-rotatable and movable in the axial direction, and to move up and down.

With the above configuration, the upper end portion 2 of the capsule 2
When the cap 4 is rotated with the cap 4 fitted to the cap 1, the cam 48 comes into contact with the cam follower portion 53 of the presser member 8, and the vial 3 can be pushed down together with the presser member 8 inside the capsule 2.

Next, a mechanism for controlling the communication order by the braking means 6 will be explained based on FIGS. 7 to 9.

The braking means 6 is shown in FIGS. 7-9. This braking means 6 has an arm portion 54, a locking portion 55 erected at both ends thereof, and a pressing portion 56 erected inside the locking portion 55, and is made of flexible material such as polypropylene. Molded from synthetic resin. At the tip of the locking portion 55, a locking pawl 57 projects laterally outward. Also, the pressing part 56
The head is shaped to fit into the neck 19 of the vial 3. The distance between the two pressing parts 56 is equal to the opening 17 of the vial 3.
It is smaller than the outer diameter of the neck portion 19 and slightly larger than the outer diameter of the neck portion 19. Further, a gap is provided between the pressing portion 56 and the locking portion 55 to allow the locking portion 55 to bend inward. A hub 58 of the puncture needle 7 is integrally formed in the lower center of the arm portion 54, and the needle body of the puncture needle 7 is inserted into a hole 59 at the center and fixed thereto.

The braking means 6 is placed inside the capsule 2 as shown in FIG. 9, and is mounted so that the locking pawl 57 comes into contact with the locking portion 27 of the capsule 2. This braking means 6
The puncture needle 7 and the puncture needle 7 constitute a communication means referred to in the claims. In addition, as a means of communication,
Known communication means can be used, including the communication means made of a breakable member shown in Japanese Patent No. 01129.

[0035] In the present invention, examples of drugs to be placed in the vial 3 include the following.

[0036] Antibiotics include cefazolin sodium, ceftizoxime sodium, cefotiam hydrochloride, cefmenoxime hydrochloride, cefacetril sodium, cefamandole sodium, cephaloridine, cefotaxime sodium, cefotetan sodium, cefoperazone sodium, and cefsulodine. There are cephem antibiotics such as sodium, ceftesol sodium, cefpiramide sodium, cefmetazole sodium, and cefuroxime sodium, and penicillin antibiotics such as ampicillin sodium, carbenicillin sodium, sulbenicillin sodium, and ticarcillin sodium. Antitumor agents include mitomycin C, fluorouracil,
These include tegafur and cytarabine. Anti-ulcer agents include famotidine, ranitidine hydrochloride, and cimetidine.

[0037] As the solution to be placed in the bag 1, for example, physiological saline, 5% glucose solution, distilled water for injection, and solutions containing various electrolytes can be used.

The liquid passage section 11 is made of the same material as the bag 1.
It is a cylindrical body made of polyolefin resin, for example, and has an upper end 33 and a lower end 34, as shown in FIG. An engaging protrusion 35 and a flange 36 are formed on the outer periphery of the upper end portion 33 . Engagement protrusion 35
is fitted into the engagement groove 32 of the coupling portion 16 and the liquid passage portion 1
1 is firmly connected so that it does not come off from the joint 16. The lower end 34 is welded to the main body of the bag 1 by means of an impulse sealer, a heating mold, a high frequency welder, an ultrasonic generator, or the like.

A closing membrane 38 is integrally formed inside the cylindrical body of the liquid passage section 11. The closure membrane 38 is a thin membrane in whole or in part, and functions to keep the inside of the bag 1 liquid-tight until it is pierced by the puncture needle 7.

A rubber stopper 41 is shown in FIG. The rubber stopper 41 is a cylindrical body made of rubber with a bottom 42 for preventing the solution from leaking into the capsule 2, and an annular rib 44 is formed on the inner peripheral surface of the upper end of the cylindrical body 43. . This rib 44 is in close contact with the outer periphery of the hub of the puncture needle 7, which will be described later. A conical notch 45 is formed in the center of the inner circumferential surface of the bottom portion 42 to prevent the rubber from being cut off by the cutting edge when the puncture needle 7 is inserted through the rubber, thereby preventing the rubber from becoming stuck in the puncture needle 7. ing. When this rubber stopper 41 is fitted to the inner periphery of the liquid passage section 11 on the capsule 2 side, the bottom part 42 comes into contact with the surface of the closing membrane 38 in the liquid passage section 11 on the capsule 2 side.

Next, the communication operation of the infusion container assembled as described above will be explained based on FIGS. 12 to 14.

As the cap 4 is rotated in the direction of arrow A, the cam 48 pushes down the holding member 8, and the vial 3 is lowered. When the mouth portion 17 of the vial 3 presses and bends the pressing portion 56 of the braking means 6 outward, the distance between the pressing portion 56 and the locking claw 57 becomes narrower, so that the locking claw 57 comes out from the locking portion 27. Even though the vial 3 hits the pressing portion 56 and cannot be pulled out, and the vial 3 descends, the braking means 6 does not descend.

When the cap 4 is further rotated in the direction of arrow A, the vial 3 descends and its opening 17 is sandwiched between the two pressing parts 56 of the braking means 6. At this time, the rubber stopper 20 in the mouth portion 17 is pierced by the upper blade of the puncture needle 7.

Until the puncture of the puncture needle 7 is completed, the gap between the pressing part 56 and the locking claw 57 is narrow as described above, so the braking means 6 does not descend; however, as soon as the puncturing is completed, the pressing part 56
returns to an almost upright state, and the gap between it and the locking pawl 57 becomes larger (see FIG. 13). This allows the braking means 6 to escape from the hook 27 and descend.

When the cap 4 is further turned in the direction of arrow A,
The vial 3 descends, but since the locking portion 55 is bent inward, the braking means 6 also descends together (see FIG. 14). Then, the rubber stopper 4 is pressed by the lower blade of the puncture needle 7.
1 and the closing membrane 38 of the liquid passage section 11 are continuously pierced. Thereby, the inside of the vial 3 and the inside of the bag 1 are communicated with each other through the puncture needle 7. in this way,
First, pierce the rubber stopper 20 of the vial 3 inside the capsule 2,
Since the closing membrane 38 of the bag 1 is then pierced, the solution in the bag 1 will not leak into the capsule 2. Note that the annular rib 44 of the rubber stopper 41 is in close contact with the periphery of the hub 58 from the beginning to prevent leakage of the solution even in the initial stage of puncturing the obturator membrane 38 with the puncture needle 7.

[0046] When the vial 3 and the bag 1 are brought into communication in this manner, the bag 1 is compressed or kneaded to send a portion of the solution inside into the vial 3, and the drug in the vial 3 is released. dissolve. Then, when the bag 1 is pressed or squeezed again, the drug solution in the vial 3 returns to the inside of the bag 1. The returned drug solution is sent to the drug solution outlet 13 of the bag 1.
It is used as an infusion by connecting an infusion tube etc. to the infusion tube.

Next, other embodiments of the present invention are shown in FIGS. 17 to 21.
The explanation will be based on. Note that matters other than the following description are substantially the same as those of the above embodiment.

FIG. 17 is a partially cutaway view showing the cap 4 upside down. A ring-shaped rubber packing 61 is inserted between the side wall 47 of the cap 4 and the cam 48 so as to be in close contact with the top 46. In this way, when the rubber packing 61 is inserted, the upper end surface of the capsule 2 and the inner wall surface of the cap 4 are sealed, which has the advantage of high airtightness.

In the same figure, the holding member 8 is a beam 51 with a fitting hole 62 formed in the center.
On the other hand, a protrusion 63 is formed at the center of the inner wall surface of the top portion 46 of the cap 4 . By fitting the fitting hole 62 into the protrusion 63, the holding member 8 is held so as not to easily fall off. Therefore, when assembling the infusion container of the present invention, if the holding member 8 is fitted as shown in the figure, it will not fall off by itself, making the assembly work easier. It should be noted that, when used after assembly is completed, by turning the cap 4 and pushing down the presser member 8 with the cam 48, the fitting between the fitting hole 62 and the protrusion 63 can of course be easily removed.

The cam 48 of the cap 4 shown in FIGS. 17 and 18 has a stopper 64 formed at its end portion. This stopper 64 consists of a rib 65, a rib 66, and a groove 64a between them, and the rib 66 is formed on an inclined surface. On the other hand, as shown in FIGS. 18 and 19, the capsule 2 has a rib extension 28a on one side of the ribs 28 formed on the inner periphery thereof extending to the upper end 21.

[0051] Then, cover the capsule 2 with the cap 4,
When the cap 4 is turned as shown in FIG. 18, the stopper 6
4 is adapted to fit into the rib extension 28a. Note that since the rib 66 is formed on an inclined surface, the resistance is small when climbing over the rib extension 28a.
However, once the rib extension 28a is inserted into the groove 64a, the ribs 65 and 66 on both sides are inserted into the rib extension 28a.
8a, the rotation of the cap 4 is prevented.

Since this embodiment is provided with such a stopper 64, even if the vial 3 is pushed upward by the elastic force when the rubber stopper 20 is pierced by the puncture needle 7, this is prevented. can do. therefore,
The rubber stopper 20 can be completely penetrated by the piercing needle 7.

As shown in FIG. 19, in this embodiment, a protrusion 67 is formed above the hook 27 in the capsule 2, that is, below the guide 26. As shown in FIG. This protrusion 67 allows the braking means 6 to be attached to the latching portion 2 by the latching claw 57.
7, so that when inserted into the capsule 2, it is located above the locking claw 57 and can come into contact with it. Therefore, this protrusion 67 can prevent the braking means 6 from moving freely during assembly of the infusion container, and has the advantage of facilitating assembly work.

FIG. 20 shows the capsule 2 in this example.
and the joint structure of bag 1 are shown. A coupling hole 68 is bored in the coupling part 16 of the capsule 2, and an engaging protrusion 69 is provided in the liquid passage part 11 of the bag 1, so that these parts fit together and are coupled. . 1st
FIG. 9 shows the combined state.

The connection between the connection hole 68 and the connection protrusion 69 as described above has a high connection strength and has the advantage of not being easily separated after connection.

The rubber stopper 41 in this embodiment is as follows:
As shown in FIG. 19, it is inserted into the inner circumferential wall 71 of the coupling portion 16. This rubber stopper 41 has a bottom portion 42 that is entirely thin, and does not have a cutout like the rubber stopper 41 shown in FIG. 11 of the previous embodiment. However, since the entire bottom portion 42 is made thin, the penetration resistance of the piercing needle 7 is reduced as in the rubber stopper 41 of FIG. 11.

The chemical solution outlet 13 of this embodiment is shown in FIG. As shown in the figure, chemical solution outlet 1
A flange 72 is formed at the bottom end of 3, and the flange 72
A stopper cap 75 is joined to. A rubber stopper 73 is inserted into this stopper cap 75.
A sticker 74 is affixed to the bottom surface. A plastic sheet or the like can be used as the material for the seal 74. This seal 74 may be stuck on the infusion container until just before use, and then peeled off at the beginning of use. By using such a seal 74, the surface of the rubber stopper 73 can be prevented from being contaminated.

[0058] Also in the embodiments shown above, FIGS.
Similarly to the embodiment shown in No. 6, the drug and the solution can be mixed aseptically by simply rotating the cap while it is attached without removing the cap.

In each of the above embodiments, the puncture needle 7 has one fluid passage, but in the present invention, a puncture needle 10 having two fluid passages can also be used. Such a puncture needle 10 has two fluid passages 10a and 10b formed therein, as shown in FIG. 22, for example.In this puncture needle 10, air passes through one passage, and air passes through the other. Since the liquid passes through the passage of
It has the advantage that liquid passes through it quickly. Therefore, it is possible to mix the drug and the solution in a shorter time.

Although various embodiments have been described above, various modifications can be made to the present invention without departing from the gist thereof.

[0061]

[Effects of the Invention] As explained above, according to the infusion container of the present invention, the drug and the solution can be mixed by simply rotating the cap while the cap is placed on the capsule. , it is possible to reliably prevent bacteria from entering into the infusion. Further, since the cap itself only rotates and does not move downward, the internal pressure of the container does not increase during the communication operation, and the communication operation can be performed smoothly.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of an infusion container according to an embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view of the capsule.

FIG. 3 is a plan view of the capsule.

FIG. 4 is an enlarged view of the engaging protrusion of the capsule.

FIG. 5 is an enlarged cross-sectional view of the joint portion of the capsule.

FIG. 6 is a partially cutaway perspective view of the push-down mechanism.

FIG. 7 is a front view of the braking means.

FIG. 8 is a plan view of the braking means.

FIG. 9 is a partially cutaway perspective view of the piercing order control mechanism.

FIG. 10 is a longitudinal cross-sectional view of a liquid passage section.

FIG. 11 is a longitudinal sectional view of the rubber stopper.

FIG. 12 is a sectional view showing the order of piercing operations in the embodiment.

FIG. 13 is a sectional view showing the order of piercing operations in the embodiment.

FIG. 14 is a sectional view showing the order of piercing operations in the embodiment.

FIG. 15 is a perspective view showing an example of suspension means.

FIG. 16 is a perspective view showing an example of suspension means.

FIG. 17 is a partially cutaway perspective view showing a cap of an infusion container according to another embodiment of the present invention.

FIG. 18 is a horizontal sectional view of the cap attached to the capsule.

FIG. 19 is a longitudinal sectional view of a capsule of an infusion container according to the other embodiment.

FIG. 20 is a perspective view showing the coupling structure of the capsule and bag of the infusion container in the other embodiment.

FIG. 21 is a partial cross-sectional view showing the drug solution outlet of the bag in the other embodiment.

FIG. 22 is a partially sectional view showing another example of the puncture needle used in the present invention.

FIG. 23 is a partial front sectional view of a conventional infusion container.

FIG. 24 is an explanatory diagram of a conventional infusion container in use.

FIG. 25 is a longitudinal cross-sectional view of a conventional drug solution container before use.

FIG. 26 is a perspective view of the neck of the container body.

FIG. 27 is a longitudinal cross-sectional view of the device in use.

[Explanation of symbols]

1 Flexible container 2 Capsule 3. Drug container 4 Cap 6 Braking means 7 Puncture needle 10 Puncture needle 8 Pressing member 11 Liquid passage section 16 Joint part 20 Rubber stopper 38 Closure membrane 58 Hub 64 Stopper

Claims (2)

[Claims] Claim 1: (a) a flexible container containing a dissolving solution or a diluting solution and having a liquid passage portion closed at the upper end with a closing membrane; (b) connected to the flexible container; (c) a capsule having a cage and a guide formed on its inner surface;
(d) a communication means for communicating the interior of the flexible container and the interior of the medicine container; (e) )
(f) a cap for lowering the drug container, which is hermetically capped on the capsule; and (f) a presser foot, which is provided with a guide rod that fits into a guide groove of the capsule and is fitted to the bottom of the drug container. A pair of cams made of arcuate plates are formed axially symmetrically on the lower surface of the top of the cap, and the presser member and the cam engage, and when the cap rotates, the cam is pressed. An infusion container characterized in that the medicine container is moved downward via a member, and the inside of the medicine container and the inside of the flexible container are communicated with each other by the communication means. 2. The infusion container according to claim 1, wherein the cap has a suspension means on its top surface.