JP2020146525A - Multi-chamber container and production method thereof - Google Patents

Abstract

To provide a production method of a multi-chamber container in which a plurality of storage parts and a small container can be easily opened and contents can be easily mixed.SOLUTION: A multi-chamber container 1 comprises: a container body 5 having a plurality of storage parts 9, 11; a discharge hole 7 connected to the storage part 11; a partition weak seal part 13 for partitioning the container body 5 into the plurality of storage parts 9, 11 and increasing a pressure in the storage part to open and communicate the plurality of storage parts 9, 11 each other; and a small container 15 arranged on any of the plurality of storage parts 9, 11 and opened following the opening and communication of the partition weak seal part 13. The multi-chamber container further comprises: a first hook part L1 which is formed on at least a part or vicinity of a center side from one end side of the partition weak seal part 13; and a second hook part R1 which is formed on at least a part or vicinity of a center side from the other end side of the partition weak seal part 13, in which the first and second hook parts L1, R1 are not in contact with each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to a multi-chamber container and a method for manufacturing a multi-chamber container.

Among the drugs administered to patients by intravenous injection, there are unstable drugs that cause undesired changes over time when premixed. For example, if an amino acid infusion solution and a glucose infusion solution are mixed and stored, the mixed solution turns brown due to the so-called Maillard reaction. In addition, when the fat emulsion and the electrolyte solution are mixed and stored, the fat content aggregates, and when the phosphoric acid-containing solution and the calcium-containing solution are mixed, calcium phosphate precipitates, which causes undesired changes. Wake up.

For such drugs, medical multi-chamber containers that individually store the components before mixing are often used. This multi-chamber container for medical use is provided with a plurality of storage portions for individually storing medicines, and a weak seal portion for partitioning that partitions the storage portions and can be peeled off by applying pressure from the outside (). For example, see Patent Document 1).

JP-A-2002-136570 International Publication No. 03/092574

14 to 16 are explanatory views showing an example of such a conventional multi-chamber container for medical use, FIG. 14 is a plan view, FIG. 15 is a cross-sectional view taken along the line XX of FIG. 14, and FIG. 16 is an opening view. It is a cross-sectional view of.

As shown in FIG. 14, in the multi-chamber container 1, the inside of the container body 5 formed in a rectangular shape by adhering the peripheral edge portion 3 is partitioned into a first storage portion 9 and a second storage portion 11 by a partition portion 13. At the same time, various chemicals a and b, which are not desirable to be mixed or dissolved in advance, are stored in the respective storage units 9 and 11, respectively, and further, any of the respective storage units 9 and 11 (the first storage unit 9 in FIG. 14). ) Is provided with a small container 15, and the drug c is stored in the small container 15. As shown in an enlarged cross section of FIG. 15, the small container 15 is provided with an adhesive portion 21 on the inner surface of the films 15a and 15b of the small container 15 inside the films 5a and 5b constituting the container body 5. As shown in FIG. 16, a force is applied from the outside of the container body 5 to apply pressure to the partition portion 13 to give peeling forces F and F, and the first storage portion 9 and the second storage portion 11 are opened to open the drug. When a and b are mixed, the adhesive portion 21 of the small container 15 is also peeled off at the same time, and the drug c in the small container 15 is also mixed with the drugs a and b of the storage portions 9 and 11 ( For example, see Patent Document 2).

However, if the pressure on the partition portion 13 and the peeling forces F and F are insufficient, for example, when the external force on the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate, the pressure is small. The adhesive portion 21 of the container 15 also does not peel off, and the drug c, which is the content in the small container 15, may not be mixed with the drugs a, b, which are the contents of the storage portions 9, 11.

In order to solve the above problems, the present invention has a case where the external force on the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate in the multi-chamber container in which the small container is housed in the container body. Even if there is, it is an object of the present invention to provide a method for manufacturing a multi-chamber container and a multi-chamber container in which a plurality of storage portions and small containers are easily opened and the contents are easily mixed.

As a result of diligent studies on the structure of the multi-chamber container, the present inventors have found a multi-chamber container that can solve the above problems.
That is, in the present invention, the container main body having a plurality of storage portions, the discharge port connected to the storage portions, and the plurality of storage portions are separated from each other by partitioning the container main body into the plurality of storage portions and increasing the pressure in the storage portions. A multi-chamber container including a weak seal portion for a partition to be opened and communicated, and a small container arranged in one of a plurality of storage portions and opened together with the opening communication of the weak seal portion for a partition, which is a weak seal portion for a partition. A first hooking portion formed from one end side to at least a part or a vicinity of the center side, and a first hook portion formed from the other end side to the center side of the weak sealing portion for partitioning. Provided is a multi-chamber container further comprising 2 hooking portions, wherein the first hooking portion and the second hooking portion are not in contact with each other.

In the multi-chamber container of the present invention, the first hook portion and the partition weak seal portion from the other end side to the center side are at least a part or near the center side from one end side of the partition weak seal portion. It has a second hook portion at least in part or in the vicinity thereof. As a result, even if the external force is not strong or the position where the force is applied deviates from the appropriate part, the first hooking portion and the second hooking portion in the weak seal portion for partitioning are used. The pressure and peeling forces F and F to the part where the part is not formed (the center side of the weak seal part for partitioning) are easily transmitted, and the adhesive part and the weak seal part of the small container are also easy to peel off, and the inside of the small container The contents can be easily mixed with the contents of each storage unit.

Further, the present invention preferably has a multi-chamber container in which the first hook portion and the second hook portion are formed on the storage portion side where the small container is not arranged. As a result, the pressure and the peeling force F, F on the central side of the weak seal portion for partitioning and the small container are easily transmitted.

In the multi-chamber container of the present invention, the first hooking portion extends from the end of the first hooking main body and the first hooking main body on the center side of the container body to the small container side. It has one hook extension portion, and the second hook portion is from the end of the second hook main body and the second hook main body on the center side of the container body to the small container side. It is preferable to have a second hook extending portion that extends. As a result, the pressure and the peeling force F, F on the central side of the weak seal portion for partitioning and the small container are easily transmitted.

In the present invention, the first hook portion and / or the second hook portion may be formed in a solid line shape. By forming the first hooking portion and the second hooking portion in a solid line shape, the pressure and the peeling forces F and F on the central side of the weak sealing portion for partitioning and the small container are easily transmitted.

Further, in the multi-chamber container of the present invention, the angle formed by the first hook main body portion and the first hook extension portion is 90 ° or more and less than 180 °, and / or with the second hook main body portion. It is preferable that the angle formed by the second hook extending portion is 90 ° or more and less than 180 °. As a result, the pressure and the peeling force F, F on the central side of the weak seal portion for partitioning and the small container are easily transmitted.

In the present invention, the distance between the end of the first hooking body and the end of the second hooking body on the center side of the container body is shorter than the width of the small container and halved of the width. It is preferably longer than 1. As a result, the pressure and the peeling forces F and F to the small container are easily transmitted.

In the multi-chamber container of the present invention, it is preferable that the first hooking portion and / or the second hooking portion includes irregularities formed by embossing. Since the opening of the first hooking portion and / or the region where the second hooking portion is formed including the unevenness formed by the embossing process is delayed, the weak seal portion for partitioning is applied to the central side and the small container. Pressure and peeling force F, F are easily transmitted.

Further, in the present invention, it is preferable that the first hooking portion and the second hooking portion are symmetrical with respect to the central axis passing through the center of the container body in the longitudinal direction. As a result, the pressure and the peeling force F and F to the weakly sealed portion for partitioning and the small container can be easily transmitted uniformly.

Further, the multi-chamber container of the present invention is the first auxiliary hook formed on the side of the storage portion where the small container is arranged, and is formed in a part or the vicinity of the weak seal portion for partitioning and / or the small container. It is preferable to further include a portion and / or a second auxiliary hook portion. As a result, the pressure and the peeling forces F and F are easily transmitted to the weakly sealed portion of the small container.

The multi-chamber container of the present invention may be for medical use or food use. A multi-chamber container having such ease of opening and hermeticity during transportation can be used as a medical multi-chamber container, and can also be used for food.

The present invention is the above-mentioned method for manufacturing a multi-chamber container, in which a step of forming a weak seal portion for partitioning so as to partition the container body into a plurality of storage portions and a step of forming a weak seal portion for partitioning from one end side to the center side. A step of forming a first hooking portion at least a part or a vicinity of the partition, and a step of forming a second hooking portion at least a part or a vicinity of the center side from the other end side of the partition weak seal portion. Provided is a method for manufacturing a multi-chamber container. According to this manufacturing method, even if the external force to the multi-chamber container is not strong enough or the position where the force is applied is not appropriate, multiple storage parts and small containers can be easily opened and the contents can be opened. It is possible to manufacture a multi-chamber container that is easy to mix.

In the step of forming the weak seal portion for the partition, the weak seal portion for the partition is formed by heat fusion, and the first hook portion and the first hook portion and the first hook portion are formed by the mold for cooling the heat-sealed weak seal portion for the partition. It is preferable that the hooking portion of 2 is formed when the weak sealing portion for partitioning is cooled. As a result, it is possible to manufacture a multi-chamber container in which a plurality of storage portions and small containers are easily opened and the contents are easily mixed without increasing the number of manufacturing steps as compared with the conventional manufacturing method.

According to the present invention, in a multi-chamber container in which a small container is housed in a container body, even if the external force to the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate, a plurality of containers are used. It is possible to provide a method for manufacturing a multi-chamber container and a multi-chamber container in which the storage portion and the small container of the container are easily opened and the contents are easily mixed.

It is a top view of the medical multi-chamber container of 1st Embodiment. It is an enlarged cross-sectional view of the part taken along the line AA of FIG. This is a modified example of the enlarged cross-sectional view taken along the line AA in FIG. It is an enlarged cross-sectional view which shows the peeling open state of the medical multi-chamber container which is 1st Embodiment. It is a top view of the medical multi-chamber container of 2nd Embodiment. It is a top view of the medical multi-chamber container of 3rd Embodiment. It is a top view of the medical multi-chamber container of 4th Embodiment. It is a top view of the medical multi-chamber container of 5th Embodiment. It is a top view of the medical multi-chamber container of the sixth embodiment. It is a top view of the medical multi-chamber container of 7th Embodiment. It is a top view of the medical multi-chamber container of 8th Embodiment. It is a top view of the medical multi-chamber container of 9th Embodiment. It is an enlarged sectional view of the main part when the 1st hooking part and the 2nd hooking part are formed in the manufacturing method of this embodiment. It is a top view of the conventional multi-chamber container. FIG. 14 is an enlarged cross-sectional view taken along the line XX of FIG. It is sectional drawing which shows the peeling-open state of the multi-chamber container shown in FIG.

Hereinafter, embodiments of the multi-chamber container according to the present invention will be described with reference to the drawings.
The multi-chamber container of the present embodiment has a container body having a plurality of storage parts, a discharge port connected to the storage part, and a plurality of storages by partitioning the container body into a plurality of storage parts and increasing the pressure in the storage part. A multi-chamber container including a weak seal part for partitioning which opens and communicates with each other and a small container which is arranged in any of a plurality of storage parts and is opened together with the opening communication of the weak seal part for partitioning. A first hooking portion formed from one end side of the weak seal portion to at least a part or near the center side, and a first hook portion formed from the other end side of the weak seal portion for partitioning to at least a part or near the center side. It is a multi-chamber container further comprising a second hooking portion, and the first hooking portion and the second hooking portion are not in contact with each other.

(First Embodiment)
FIG. 1 is a plan view of a medical double-chamber container according to the first embodiment of the present invention as an example, and FIG. 2 is a partially enlarged cross-sectional view taken along line AA of FIG. FIG. 3 is an enlarged cross-sectional view taken along the line AA showing a modified example of FIG. Further, FIG. 4 is an enlarged cross-sectional view showing a peeled-open state of the medical multi-chamber container 1 according to the embodiment of the present invention.

As shown in FIG. 1, the medical multi-chamber container 1 has a container body 5 to which a peripheral portion 3 is adhered and formed in a rectangular shape, and a rubber stopper connected to the container body 5, and discharges a drug. It is provided with a drug discharge port 7 for the purpose. The container body 5 has a first storage portion 9 and a second storage portion 11 arranged in the longitudinal direction, and the two storage portions 9 and 11 are partitioned by a detachable weak seal portion 13 for partitioning. .. In addition, various chemicals a and b, which are not desirable to be mixed or dissolved in advance, are stored in the first storage unit 9 and the second storage unit 11 as contents. The axis α is a central axis that passes through the center of the container body 5 in the longitudinal direction.

The medical multi-chamber container 1 may be a bag-shaped container formed by thermally adhering or adhering the peripheral edges of two single-layer or multi-layer films. As a material constituting the container body 5 of the medical multi-chamber container 1, a film made of various resins such as a thermoplastic resin such as polyethylene, polypropylene, and polystyrene can be adopted. A hanging hole 17 is provided in the peripheral portion 3 of the medical multi-chamber container 1. For example, the medical multi-chamber container 1 can be hung on a stand or the like by passing a hook such as a stand through the hanging hole 17. ..

In order to adjust the pressure required to peel off the weak seal portion 13 for partitioning, for example, when melt-bonding a film made of a thermoplastic resin, the heat bonding time of the weak seal portion 13 for partitioning is set to the container body 5 It may be shorter than the heat bonding time of the peripheral portion 3 of the above. Alternatively, the adhesive pressure of the partition weak seal portion 13 may be lower than the adhesive pressure of the peripheral portion 3 of the container body 5. As a result, the adhesive strength of the partition weak seal portion 13 can be adjusted to be weaker than the adhesive strength of the peripheral edge portion 3. As shown in FIG. 1, in the medical multi-chamber container 1 of the first embodiment, the partition weak seal portion 13 has a width in the vertical direction (longitudinal direction) from both ends in contact with the peripheral edge portion 3 to the center side of the container body 5. The central region 13a, which is thick and parallel to a part of the small container 15 described later, has a shape having a thin width in the vertical direction (longitudinal direction). In this way, even if the width of the weak seal portion 13 for partitioning in the vertical direction in the central region 13a is reduced, the external force is not strong or the position where the force is applied is deviated from the appropriate portion. In this case, the pressure and the peeling forces F and F of the partition weak seal portion 13 to a specific region (for example, the central region 13a) are easily transmitted. Further, the adhesive portion and the weakly sealed portion of the small container 15 described later are also easily peeled off. Therefore, the contents in the small container 15 can be easily mixed with the contents of the respective storage portions 9 and 11, which is preferable.

The first storage portion 9 of the medical multi-chamber container 1 may be provided with a small container 15 for storing the drug c. The central axis of the small container 15 in the longitudinal direction may overlap with the axis α of the container body 5. As a result, the pressure and the peeling force F, F to the specific region of the partition weak seal portion 13 described above are easily transmitted to the small container 15.

As shown in FIGS. 1 and 2, the small container 15 is preferably a bag-shaped container formed by, for example, heat-bonding the periphery of two stacked films 15a and 15b. As the two films 15a and 15b, for example, a three-layer structure in which the inner layer is polyethylene, the intermediate layer is polycyclic olefin, and the outer layer is polyethylene is preferably used.

On the partition weak seal portion 13 side of the small container 15, a weak seal portion 21 is provided so that the small container 15 and the first storage portion 9 can communicate with each other by peeling and opening the partition weak seal portion 13 together with opening. You may. The width of the weak seal portion 21 may be about the same as the width of the central region 13a of the partition weak seal portion 13 in the lateral direction. The pressure required to peel off the weakly sealed portion 21 of the small container 15 is adjusted by setting the heat bonding time of the weakly sealed portion 21 in the same manner as the sealing between the weakly sealed portion 13 for partitioning and the peripheral portion 3 of the container body 5. It may be shorter than the heat bonding time of the other peripheral edges of the small container 15. Alternatively, the adhesive pressure of the weak seal portion 21 may be adjusted by performing the adhesive pressure lower than the adhesive pressure of the peripheral portion of the small container 15.

As shown in FIG. 2, the adhesive portion 19 of the small container 15 to the container body 5 may be formed on the extending portions 23a and 23b of the films 15a and 15b constituting the small container 15 outside the weakly sealed portions 21. Then, the extending portions 23a and 23b may be adhered in a continuous linear shape over substantially the entire length in the lateral direction (lateral direction). As the bonding means, for example, a means such as thermal bonding is preferably used.

The width B (see FIG. 2) of the extending portions 23a and 23b in the longitudinal direction (longitudinal direction) is set to a sufficient width when the small container 15 is adhered to the films 5a and 5b constituting the container body 5. It suffices to be 3 mm to 20 mm, more preferably 5 mm to 15 mm. Further, the lateral width of the extending portions 23a and 23b in FIG. 1 may be about the same as the lateral width of the weak seal portion 21.

In the multi-chamber medical container 1, catching portion L ₁ from one end side central side of at least a portion or near the first partition for weak seal portion 13 is formed. Further, a second hook portion R ₁ is formed from the other end side of the partitioning weak seal portion 13 to at least a portion or in the vicinity of the center side. The first hooking portion L ₁ and the second hooking portion R ₁ are arranged apart from each other so as not to come into contact with each other, and it becomes difficult to open (open) a predetermined area of the partition weak seal portion 13. As described above, it suffices that a hook shape is provided in a part or in the vicinity of the weak seal portion 13 for partitioning, and for example, as shown in FIG. .. Further, the first hooking portion L ₁ and the second hooking portion R ₁ may have only one hooked portion or a plurality of hooked portions. By forming the first hooking portion L ₁ and the second hooking portion R ₁ at the above positions in this way, when the external force is not strong or the position where the force is applied is appropriate. from even if shifted, to a specific region of the first hook portion L ₁ and the second hook portion R ₁ is not formed partitioning weak seal portion 13 (e.g., the central region 13a) Pressure and peeling force F, F are easily transmitted. Further, the adhesive portion 19 and the weak seal portion 21 of the small container 15 are also easily peeled off, and the contents in the small container 15 are easily mixed with the contents of the respective storage portions 9 and 11.

As shown in FIG. 2, the first hook portion L ₁ or the second hook portion thickness direction of the depth D1 of the concave-convex 31 is caught shape of R _1, the material constituting the film 5a, and 5b Ya It can be set as appropriate according to the thickness. When the films 5a and 5b are thermoplastic resins such as polyethylene, polypropylene and polystyrene, and the total thickness of the films 5a and 5b is, for example, 250 to 300 μm, the depth D1 is preferably 50 to 200 μm, preferably 100 to 100. 150 μm is more preferable. It is possible to adjust the peeling strength by the depth of the first hook portion L ₁ or the second hook portion R ₁ in the thickness direction. If the depth D1 is too large, it tends to be difficult to peel off the entire partition weak seal portion 13 after the small container 15 is opened. The film 5a, when using what strength is weak as the material constituting the 5b, also fell first hook portion L ₁ or the second strength of the hook portion R _1, multi-chamber medical container 1 is damaged It is not preferable because there is a risk of On the other hand, if the depth D1 is too small, the center side of the first hook portion L ₁ or the second hook portion which R ₁ is formed without being read delay, partitioning weak seal portion 13 (13a) In addition, the pressure and the peeling forces F and F on the small container 15 are difficult to be transmitted, and a large amount of force tends to be required to peel and open the weakly sealed portion 21 of the small container 15.

Further, as shown in FIG. 3, the thickness direction depths of the first hook portion L ₁ or the second concavo-convex 31a is caught shape of hook portion R ₁ D2 also the depth D1 of FIG. 2 Similarly, it can be appropriately set according to the material and thickness constituting the films 5a and 5b. The unevenness may be formed by embossing.

The first hook portions L ₁ and the second hook portion R ₁ is preferably formed in the housing portion 11 side, which is not located in the small container 15. Thus, for example, when a pressure is applied to a portion of the housing portion 11 housing the agent b which is content, for partitioning the hook portion R ₁ of the first hook portion L ₁ and the second is formed a predetermined area of the weak seal portion 13 is opened is delayed, the central region 13a and the small container 15 of the first hook portion L ₁ and the second hook portion R ₁ is not formed partitioning weak seal portion 13 Pressure and peeling force F, F are more easily transmitted.

The first hook portions L ₁ and the second shape of the hook portion R ₁ is not particularly limited, for example it may be a solid form, or may be a dotted line or a planar shape. For example, as shown in FIG. 1, by the first hook portion L ₁ and the second shape of the hook portion R ₁ is solid-like, pressure and peel force F to the partitioning weak seal portion 13, It becomes easier for F to smoothly concentrate on a specific region (for example, the central region 13a) of the partition weak seal portion 13, whereby the adhesive portion 19 and the weak seal portion 21 of the small container 15 also become easier to peel off.

In the present embodiment, with reference to the center axis (axis alpha) passing through the center of the container body 5 in the longitudinal direction, that the first and the hook portion L ₁ and the second hook portion R ₁ is symmetrical preferable. As a result, the pressure and the peeling force F and F on the partition weak seal portion 13 and the small container 15 can be uniformly transmitted to a specific region (for example, the central region 13a) of the partition weak seal portion 13.

The first hook portion L at the center side of the container body 5 ₁ end of the hook portion ends E ₁ and the second _(first hook main body) R _{1 (second} hook main body) The distance from E ₂ is preferably shorter than the width of the small container 15 and longer than half of the width. As a result, the pressure and the peeling forces F and F to the small container 15 are easily transmitted.

When using the medical multi-chamber container 1, pressure is applied to the container body 5 (for example, a part of the second storage portion 11) to generate peeling forces F and F in the arrow directions as shown in FIG. 2, for partitioning. The weak seal portion 13 is peeled off, and the first storage portion 9 and the second storage portion 11 are opened. At this time, the unevenness 31 is a hook shape formed first and hook portions L ₁ to the second hook portion R _1, films 5a and film 5b are caught with each other. Thus, the region where the first and the hook portion L ₁ second hook portion R ₁ is formed opening delayed, first hook portions L ₁ and the second hook portion R ₁ is formed The pressure is concentrated on the unsealed area, and the desired area (for example, the center side) of the partition weak seal portion 13 can be easily opened. Further, as shown in FIGS. 3 and 4, the weak seal portion 21 of the small container 15 is peeled and opened by transmitting the peeling forces F and F, and the drug c inside the small container 15 is contained in a plurality of accommodating portions 9. , 11 outflow. A part or the vicinity of the partition weak seal portion 13 on which the first hook portion L ₁ and the second hook portion R ₁ are formed is opened later due to the outflow of the contents (drug). This is preferable because the mixing of the contents in the medical multi-chamber container 1 is further promoted.

In FIG. 2, since the adhesive portion 19 is located at a position other than the weak seal portion 21, for example, in the case of melt bonding by heat, the heat does not affect the easy peelability of the weak seal portion 21, and FIG. As shown in, it is possible to open the package reliably. Further, since the adhesive portion 19 is outside the small container 15, the quality of the internal chemical c can be maintained satisfactorily without the internal chemical c being affected by the heat during melt bonding.

(Second Embodiment)
FIG. 5 is a plan view of the medical multi-chamber container of the second embodiment. As shown in FIG. 5, the first hooking portion L ₂ includes a first hooking main body portion l ₁ formed on the center side of the container main body 5 from one end side of the partition weak seal portion 13. It has a first hook extending portion l ₂ extending from the end of the first hook main body l ₁ on the center side of the container body 5 to the small container 15 side. Similarly, the second hooking portion R ₂ is the second hooking main body portion r ₁ formed from the other end side of the partition weak seal portion 13 to the center side of the container main body 5, and the container main body 5. It has a _second hook extending portion r ₂ extending from the end of the second hook main body portion r ₁ on the central side to the small container 15 side. In this way, the first hook extending portion l ₂ and the second hook extending portion l ₂ extending from the end of the first hook main body portion l ₁ and the second hook main body portion r ₁ toward the small container 15 side. by having a catch extending portion r _2, the pressure and release force F to the center side (the central region 13a) and the small container 15 of the partitioning weak seal portion 13, F since becomes easily transmitted, and in the preferred embodiment is there.

(Third Embodiment)
FIG. 6 is a plan view of the medical multi-chamber container of the third embodiment. As shown in FIG. 6, the first hook extension portion l ₃ of the first hook portion L ₃ extends toward the small container 15 side from the first hook extension portion l _{2 in} FIG. Exists. Similarly, the second hook extending portion r ₃ of the second hook portion R _3, rather than the second hook extending part r ₂ in FIG. 5, extends into the small container 15 side .. This is a preferable embodiment because the pressure and the peeling forces F and F to the small container 15 are more easily transmitted.

(Fourth Embodiment)
FIG. 7 is a plan view of the medical multi-chamber container of the fourth embodiment. As shown in FIG. 7, the partition weak seal portion 13 of the container body 5 is, for example, a crease portion when the medical multi-chamber container 1 is stored in a shipping box or the like, and is a crease portion in the longitudinal direction of the container body 5. A half-fold line 25 that passes through the center of the above and is orthogonal to the axis α may be provided. In the medical multi-chamber container 1 of the fourth embodiment, the small container 15 is located on the side of the accommodating portion 9, and is located in a part or in the vicinity of the partition weak seal portion 13 and / or the small container 15. The auxiliary hooking portion L _{11 of 1} and the second auxiliary hooking portion R ₁₁ may be formed. In this way, the first auxiliary hooking portion L ₁₁ and the second auxiliary hooking portion R ₁₁ are separated from the first hooking portion L ₂ and the second hooking portion R ₂ via the half-fold line 25. By arranging the containers in a half-folded state at the boundary of the half-folded line 25, for example, when the medical multi-chamber container 1 is transported, pressure is applied due to the weight of the stacked layers. However, the pressure and the peeling forces F and F tend to be difficult to transmit. The shapes of the first auxiliary hooking portion L ₁₁ and the second auxiliary hooking portion R ₁₁ are not particularly limited, but are solid linear from the viewpoint of facilitating the transmission of pressure and peeling forces F and F to the small container 15 at the time of opening. Is preferable.

(Fifth Embodiment)
FIG. 8 is a plan view of the medical multi-chamber container of the fifth embodiment. As shown in FIG. 8, the shape of the partition weak seal portion 13A may be, for example, a triangle or a combination of a trapezoid and a rectangle. Further, the first hooking portion L ₃ and the second hooking portion R ₃ are provided along the shape of the partition weak seal portion 13A, and the first hooking main body in the first hooking portion L ₃ is provided. The angle θ ₁ formed by the portion l ₄ and the first hook extending portion l ₅ is preferably 90 ° to less than 180 °, more preferably 110 ° to 150 °, and further preferably 120 ° to 140 °. May be °. The same applies to the angle theta ₂ of the second hook portion R _3, by the angle theta ₁ of the first hook portion L _3, the angle theta ₂ is at the second hook portion R ₃ is in the above range, The pressure and peeling forces F and F on the central side (central region 13a) of the partition weak seal portion 13 and the small container 15 are easily transmitted.

(6th to 9th embodiments)
9 to 12 are plan views of the medical multi-chamber container of the sixth to ninth embodiments. As the first hook portion L ₄ and the shape of the second hook portion R ₄ of the sixth embodiment shown in FIG. 9, it may be arcuate rather than straight. Also, as in the seventh embodiment shown in FIG. 10, space or spaces between the first hook portions L ₅ and / or the second hook portion R ₅ and partitioning weak seal portion 13 is formed You may be. According to the seventh embodiment, it is preferable in that the area of the weakly sealed portion for partitioning can be reduced, but from the viewpoint of sterilization treatment, the space or space may not be necessary. Further, as in the eighth embodiment shown in FIG. 11, the ends (E ₅ , E ₆ ) of the first hook portion L ₆ and / or the second hook portion R ₆ are peripheral portions of the container body 5. It does not have to be in contact with 3. As in the ninth embodiment shown in FIG. 12, the first hooking portion L ₇ and / or the second hooking portion R ₇ is formed so as to overlap a part of the partition weak seal portion 13. May be good.

(Production method)
The method for manufacturing a multi-chamber container of the present embodiment includes a step of forming a partition weak seal portion 13 so as to partition the container body 5 into a plurality of storage portions 9 and 11, and one end side of the partition weak seal portion 13. The step of forming the _first hooking portion L1 at least a part or near the center side from the center, and the second hooking portion at least a part or near the center side from the other end side of the partition weak seal portion 13. A step of forming the portion R ₁ is provided. According to this manufacturing method, the plurality of storage portions 9, 11 and the small container 15 are opened even when the external force on the multi-chamber container 1 is not sufficiently strong or the position where the force is applied is not appropriate. It is possible to manufacture the multi-chamber container 1 which is easy to be easily mixed with the contents.

In the step of forming the partition weak seal portion 13, the partition weak seal portion 13 is preferably formed by heat fusion, and the heat-sealed weak partition portion 13 is cooled by a mold. It is preferable that the hooking portion 1 and the second hooking portion are formed when the weak sealing portion 13 for partitioning is cooled. As the mold, for example, as shown in FIG. 13A, an upper mold 41 having a concave portion 41a and a lower mold 43 having a convex portion 43a are used. By pressing the films 5a and 5b with the upper die 41 and the lower die 43, the unevenness 31 which is a hook shape can be formed. Further, as shown in FIG. 13B, the unevenness 31a having a hook shape may be formed by being pressed by the upper die 41A having a flat surface and the lower die 43A having a convex portion 43b. .. Here, the upper molds 41, 41A and the lower molds 43, 43A are preferably molds for cooling the partition weak seal portion 13. Further, although not particularly shown, a recess may be provided on the flat surface of the upper mold 41A. In this way, by forming the first hooking portion and the second hooking portion with the mold for cooling the heat-sealed weak seal portion 13 for partitioning when the weak sealing portion 13 for partitioning is cooled, conventionally It is possible to manufacture a multi-chamber container in which a plurality of storage portions and small containers are easily opened and the contents are easily mixed without increasing the manufacturing process as compared with the manufacturing method of.

In the above embodiment, the embodiment of the medical multi-chamber container is described as an example, but the present embodiment is not limited to the medical use, and even if it is a multi-chamber container for food, for example. Good. In the case of a multi-chamber container for food, for example, the content is a fluid food, and the discharge port is a food discharge port for the food to be discharged to the outside of the container.

1 ... Medical multi-chamber container 3 ... Peripheral part 5 ... Container body 5a, 5b ... Film that constitutes the container body 7 ... Discharge port 9 ... 1st storage part 11 ...・ Second storage part 13 ・ ・ ・ Weak seal part for partition 13a ・ ・ ・ Central area 13b ・ ・ ・ Long side 15 on the small container side ・ ・ ・ Small container 15a, 15b ・ ・ ・ Film 17 constituting the small container .. Hanging hole 19 ... Adhesive part 21 ... Weak seal part 23a, 23b ... Extension part 25 ... Half-folded line 31, 31a ... Concavo-convex 41 ... Upper mold 41a ... Concave 43 ... Lower molds 43a, 43b ... Convex parts L, L _{1 to} L ₇ ... First hooking parts R, R _{1 to} R ₇ ... Second hooking parts E ₁ to E ₈ ... The end α ... axis of the first hooking portion or the second hooking portion

Claims (12)

A container body with multiple storage compartments and
With the discharge port connected to the storage unit,
A partitioning weak seal portion that partitions the container body into the plurality of storage portions and increases the pressure in the storage portions to open and communicate the plurality of storage portions with each other.
A multi-chamber container comprising a small container arranged in any of the plurality of storage portions and opened together with the opening communication of the partition weak seal portion.
A first hooking portion formed at least partly or in the vicinity of the central side from one end side of the weak sealing portion for partitioning.
A second hook portion formed at least a part or in the vicinity of the center side from the other end side of the partition weak seal portion is further provided.
A multi-chamber container in which the first hook portion and the second hook portion do not contact each other. The multi-chamber container according to claim 1, wherein the first hook portion and the second hook portion are formed on the storage portion side where the small container is not arranged. The first hook portion extends from the end portion of the first hook main body portion and the first hook main body portion on the central side of the container main body to the small container side. Has an extension and
The second hooking portion extends from the end of the second hooking main body and the end of the second hooking main body on the center side of the container body to the small container side. The multi-chamber container according to claim 1 or 2, which has an extending portion. The multi-chamber container according to any one of claims 1 to 3, wherein the first hook portion and / or the second hook portion is formed in a solid line. The angle between the first hook main body and the first hook extension portion is 90 ° or more and less than 180 °, and / or the second hook main body and the second hook extension. The multi-chamber container according to claim 3, wherein the angle formed with the existing portion is 90 ° or more and less than 180 °. The distance between the end of the first hooking body and the end of the second hooking body on the center side of the container body is shorter than the width of the small container and is two minutes of the width. The multi-chamber container according to any one of claims 3 to 5, which is longer than 1 of the above. The multi-chamber container according to any one of claims 1 to 6, wherein the first hook portion and / or the second hook portion includes unevenness formed by embossing. According to any one of claims 1 to 7, the first hook portion and the second hook portion are symmetrical with each other with respect to a central axis passing through the center of the container body in the longitudinal direction. The described multi-chamber container. The first auxiliary hooking portion and / or the second auxiliary hooking portion and / or the second auxiliary hooking portion formed on the side of the storage portion where the small container is arranged and / or a part or the vicinity of the small container for partitioning. The multi-chamber container according to any one of claims 1 to 8, further comprising an auxiliary hooking portion of the above. The multi-chamber container according to any one of claims 1 to 9, wherein the multi-chamber container is a multi-chamber container for medical use or food. It is a method of manufacturing a multi-chamber container.
The process of forming a weak seal for partitioning so that the container body is partitioned into multiple storage sections,
A step of forming a first hooking portion from one end side to at least a part or a vicinity of the central side of the weak sealing portion for partitioning.
The duplex according to any one of claims 1 to 10, further comprising a step of forming a second hooking portion from the other end side to the central side of the weak sealing portion for partitioning at least a part or in the vicinity thereof. Manufacturing method of chamber container. In the step of forming the partition weak seal portion, the partition weak seal portion is formed by heat fusion.
The eleventh aspect of claim 11, wherein the first hooking portion and the second hooking portion are formed at the time of cooling the weak sealing portion for partitioning by a mold for cooling the weakly sealed portion for partitioning which has been heat-sealed. The manufacturing method described.

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