JP7242064B2 - Multi-chamber container and method for manufacturing multi-chamber container - Google Patents

Description

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

Some drugs that are administered to patients intravenously are unstable drugs that, if preformulated, undergo undesirable changes over time. For example, when an amino acid infusion solution and a glucose infusion solution are mixed and stored, the mixture turns brown due to the so-called Maillard reaction. In addition, if a fat emulsion and an electrolyte solution are blended and stored, the fat content will aggregate, and if a phosphoric acid-containing solution and a calcium-containing solution are blended, calcium phosphate will precipitate, resulting in undesirable changes. wake up

For such medicines, multi-compartment containers for medical use are often used in which the components are separately stored before being mixed. This multi-chamber container for medical use comprises a plurality of storage compartments for individually storing medicines, and a partitioning weak seal part that partitions the storage compartments and can be peeled off by applying pressure from the outside ( For example, see Patent Document 1).

JP-A-2002-136570 WO 03/092574

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

As shown in FIG. 14, the multi-chamber container 1 partitions the interior of the container body 5 formed into a rectangular shape by bonding the peripheral edge 3 into a first storage portion 9 and a second storage portion 11 by a partition portion 13. At the same time, various drugs a and b, which are undesirable if mixed or dissolved in advance, are stored in the storage units 9 and 11, respectively. ) is provided with a small container 15, and the medicine c is stored in the small container 15. As shown in FIG. This small container 15 has adhesive portions 21 on the inner surfaces of the films 15a and 15b of the small container 15 inside the films 5a and 5b forming the container body 5, as shown in an enlarged cross section in FIG. As shown in FIG. 16, a force is applied from the outside of the container body 5, pressure is applied to the partition part 13 to apply peeling forces F, F, the first storage part 9 and the second storage part 11 are unsealed, and the medicine is released. When a and b are mixed, the adhesive part 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 in the storage parts 9 and 11 ( For example, see Patent Document 2).

However, for example, if the force from the outside to the multi-chamber container is not strong enough, or the position where the force is applied is not appropriate, the pressure on the partition part 13 and the peeling force F, F become insufficient. In some cases, the adhesive portion 21 of the container 15 is not peeled off, and the drug c contained in the small container 15 is not mixed with the drugs a and b contained in the storage sections 9 and 11 .

In order to solve the above problems, the present invention provides a multi-chamber container in which small containers are stored in a container body, even when the force from the outside to the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate. To provide a multi-chamber container and a method for manufacturing the multi-chamber container, in which a plurality of storage parts and small containers are easily opened and contents are easily mixed even if there is.

The present inventors found a multi-chamber container capable of solving the above problems as a result of earnestly studying the structure of the multi-chamber container.
That is, the present invention includes a container body having a plurality of storage portions, a discharge port connected to the storage portions, and partitioning the container body into the plurality of storage portions and increasing the pressure in the storage portions so that the plurality of storage portions are mutually connected. A multi-chamber container comprising: a partitioning weak seal portion for unsealing communication; and a small container arranged in one of a plurality of storage portions and opened together with the partitioning weak seal portion for unsealing communication, wherein the partitioning weak seal portion is provided. A first hook formed at least partly or in the vicinity of the center side from one end side of the weak seal part for partitioning, and a second part formed at least partly or in the vicinity of the center side from the other end side of the partitioning weak seal part To provide a multi-chamber container further comprising two hooks, wherein the first hook and the second hook are not in contact with each other.

The multi-chamber container of the present invention has a first hook portion at least partially or in the vicinity from one end side of the weak partitioning seal portion to the center side, and a first hook portion from the other end side to the center side of the weak partitioning seal portion. It has a 2nd hook part in at least one part or the vicinity. As a result, even if the force from the outside is not strong or the position where the force is applied is deviated from the appropriate portion, the first hooking portion and the second hooking portion of the weak partition seal portion can be secured. The pressure and peeling force F, F to the part where the part is not formed (the center side of the weak seal part for partition) is easily transmitted, and the adhesive part and weak seal part of the small container are also easily peeled off, and the inside of the small container The contents are easier to mix with the contents of each container.

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

In the multi-chamber container of the present invention, the first hook portion includes the first hook body portion and the second hook portion extending from the end portion of the first hook body portion on the center side of the container body toward the small container side. and a second hook extending from the second hook main body and the end of the second hook main body on the center side of the container body toward the small container. It preferably has an extending second hook extension. As a result, the pressure and the peeling forces F, F are easily transmitted to the central side of the partitioning weak seal portion and the small container.

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

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

In the present invention, the distance between the end of the first hook body and the end of the second hook body on the central side of the container body is shorter than the width of the small container and half the width. Longer than 1 is preferred. As a result, the pressure and peeling forces F, F can be easily transmitted to the small container.

In the multi-chamber container of the present invention, it is preferable that the first hooking portion and/or the second hooking portion include irregularities formed by embossing. Since the area where the first hooking part and / or the second hooking part including the unevenness formed by embossing is formed delays opening, the central side of the partition weak seal part and the small container Pressure and peeling forces F, F are easily transmitted.

Moreover, in the present invention, it is preferable that the first hook and the second hook are symmetrical with respect to a central axis passing through the center of the container body in the longitudinal direction. As a result, the pressure and the peeling forces F, F to the weak partition seal portion and the small container can be easily transmitted uniformly.

Further, in the multi-chamber container of the present invention, the first auxiliary hook is formed on the side of the storage section where the small container is arranged and on a part of or near the partitioning weak seal portion and/or the small container. Preferably, it further comprises a portion and/or a second auxiliary hook. As a result, the pressure and peeling forces F, F can be 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. Such a multi-chamber container having both ease of opening and sealability during transportation can be used as a multi-chamber container for medical use, and can also be used for food.

The present invention provides a method for manufacturing the multi-chamber container, comprising: forming a partitioning weak seal portion so as to partition the container body into a plurality of storage portions; a step of forming a first hook on at least a portion of or in the vicinity of, and a step of forming a second hook on at least a portion of or in the vicinity of the center side from the other end side of the partitioning weak seal portion and providing a method for manufacturing a multi-chamber container. According to this manufacturing method, even if the force from the outside to the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate, the plurality of storage parts and small containers can be easily opened and the contents can be lost. It is possible to manufacture multi-chamber containers that are easy to mix.

In the step of forming the partitioning weak seal portion, the partitioning weak seal portion is formed by heat-sealing, and a mold for cooling the heat-sealed partitioning weak seal portion is used to form the first hook portion and the first hook portion. It is preferable to form the second hook portion when the weak partition seal portion 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 processes compared to the conventional manufacturing method.

According to the present invention, in a multi-chamber container in which small containers are stored in a container body, even if the force from the outside to the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate, multiple It is possible to provide a multi-chamber container and a method for manufacturing a multi-chamber container in which the storage part and the small container are easily opened and the contents are easily mixed.

It is a top view of the medical multi-chamber container of 1st Embodiment. FIG. 2 is a partial enlarged cross-sectional view taken along the line A-A in FIG. 1; It is a modification of the AA arrow partial enlarged sectional view of FIG. It is an expanded sectional view which shows the peeling opening state of the multiple-chamber medical 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 6th 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. FIG. 4 is an enlarged cross-sectional view of a main part when the first hooking portion and the second hooking portion are formed in the manufacturing method of the present embodiment; It is a top view of the conventional multi-chamber container. FIG. 15 is a partial enlarged cross-sectional view taken along line XX of FIG. 14; FIG. 15 is a cross-sectional view showing the peeled-open state of the multi-chamber container shown in FIG. 14 ;

EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates, referring drawings for embodiment of the multi-chamber container which concerns on this invention.
The multi-chamber container of this embodiment includes a container body having a plurality of storage portions, a discharge port connected to the storage portion, and a plurality of storage portions by partitioning the container body into a plurality of storage portions and increasing the pressure in the storage portion. A multi-chamber container comprising: a partitioning weak seal part for opening and communicating with each other; and a small container arranged in one of a plurality of storage parts and opened together with the opening communication of the partitioning weak seal part, wherein the container is for partitioning. A first hook formed at least partly on or near the center from one end of the weak seal, and formed at least part of or near the center from the other end of the weak partitioning seal. and a second hook portion that is formed in the multi-chamber container, wherein the first hook portion and the second hook portion are not in contact with each other.

(First embodiment)
FIG. 1 is a plan view of a multiple-chamber medical container in the multiple-chamber container according to the first embodiment of the present invention, and FIG. FIG. 3 is a partially enlarged cross-sectional view taken along line A--A showing a modification of FIG. Moreover, FIG. 4 is an enlarged cross-sectional view showing the separated and unsealed state of the multiple-chamber medical container 1 that is one embodiment of the present invention.

As shown in FIG. 1, the medical multiple-chamber container 1 has a container body 5 formed in a rectangular shape with a peripheral edge 3 adhered thereto, and a rubber plug connected to the container body 5 to discharge the drug. A drug outlet 7 is provided 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 peelable weak partition seal portion 13. . In addition, the first storage part 9 and the second storage part 11 contain, as contents, various medicines a and b, which are undesirable if mixed or dissolved in advance, respectively. The axis α is a central axis passing through the center of the container body 5 in the longitudinal direction.

The multiple-chamber medical container 1 may be a bag-like container formed by thermally bonding or adhering the peripheral edge portions of two single-layer or multiple-layer films. Films made of various resins, such as thermoplastic resins such as polyethylene, polypropylene, and polystyrene, can be used as the material for forming the container body 5 of the multiple-chamber medical container 1 . A hanging hole 17 is provided in the peripheral portion 3 of the multiple-chamber medical container 1, and the multiple-chamber medical container 1 can be hung on a stand or the like by passing a hook of a stand or the like through the hanging hole 17, for example. .

In order to adjust the pressure required for peeling off the partitioning weak seal portion 13, for example, when a film made of a thermoplastic resin is melt-adhered, the heat bonding time of the partitioning weak seal portion 13 is set to the container body 5. The heat adhesion time may be shorter than that of the peripheral edge portion 3 of . Alternatively, the bonding pressure of the partitioning weak seal portion 13 may be lower than the bonding pressure of the peripheral portion 3 of the container body 5 . Accordingly, it is possible to adjust the adhesive strength of the partition weak seal portion 13 to be weaker than the adhesive strength of the peripheral portion 3 . As shown in FIG. 1 , in the multiple-chamber medical container 1 of the first embodiment, the partitioning 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 central side of the container body 5 . The center region 13a is thick and has a small width in the vertical direction (longitudinal direction) in a central region 13a parallel to a part of the small container 15 described later. As described above, even if the vertical width of the central region 13a of the weak partitioning seal portion 13 is reduced, the external force may not be strong or the position where the force is applied may deviate from the appropriate portion. In this case, the pressure and the peeling forces F, F are likely to be transmitted to a specific region (for example, the central region 13a) of the partitioning weak seal portion 13 . Furthermore, the adhesive portion and the weakly sealed portion of the small container 15, which will be described later, are also easily peeled off. Therefore, the contents in the small container 15 are easily mixed with the contents in the storage sections 9 and 11, which is preferable.

A small container 15 for storing a drug c may be provided in the first storage part 9 of the multi-chamber container 1 for medical use. The longitudinal center axis of the small container 15 may overlap the axis α of the container body 5 . As a result, the pressure and the peeling forces F, F applied to the specific region of the partitioning weak seal portion 13 are easily transmitted to the small container 15 .

As shown in FIGS. 1 and 2, the small container 15 is preferably, for example, a bag-like container formed by thermally adhering the peripheries of two films 15a and 15b that are superimposed on each other. For the two films 15a and 15b, for example, a three-layer structure composed of an inner layer of polyethylene, an intermediate layer of polycyclic olefin, and an outer layer of polyethylene is preferably used.

A weak seal portion 21 is provided on the side of the weak partition seal portion 13 of the small container 15 so that the small container 15 and the first storage portion 9 can communicate with each other by peeling and unsealing the weak seal portion 13 for partition. may The width of the weak seal portion 21 may be approximately the same as the width of the central region 13 a of the partition weak seal portion 13 in the lateral direction. Adjustment of the pressure required to peel off the weak seal portion 21 of the small container 15 is similar to the sealing between the partition weak seal portion 13 of the container body 5 and the peripheral edge portion 3, and the heat adhesion time of the weak seal portion 21 is It may be shorter than the heat bonding time for other peripheral portions of the small container 15 . Alternatively, the adhesive pressure of the weak seal portion 21 may be adjusted by adjusting the adhesive pressure to be lower than the adhesive pressure of the peripheral portion of the small container 15 .

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 forming the small container 15 outside the weak seal portion 21 as shown in FIG. The extended portions 23a and 23b may be bonded in a continuous line over substantially the entire length in the short direction (horizontal direction). For this bonding means, means such as thermal bonding is preferably used.

A width B (see FIG. 2) in the longitudinal direction (longitudinal direction) of the extending portions 23a and 23b is set to a width sufficient for adhering the small container 15 to the films 5a and 5b constituting the container body 5. Specifically, it is 3 mm to 20 mm, more preferably 5 mm to 15 mm. 1 may be about the same as the width of the weak seal portion 21 in the horizontal direction.

In the multiple-chamber container for medical use 1, the first hooking portion _L1 is formed at least partially or in the vicinity of one end of the partitioning weak seal portion 13 toward the center. In addition, a second hook portion _R1 is formed at least partially or in the vicinity of the other end side of the partitioning weak seal portion 13 toward the center. The first hooking portion _L1 and the second hooking portion _R1 are spaced apart so as not to touch each other, making it difficult to unseal (open) the predetermined area of the partitioning weak seal portion 13. As shown in FIG. 2, a hooking shape may be applied to a part of or in the vicinity of the weak partitioning seal portion 13. For example, as shown in FIG. . Also, the first hooking portion _L1 and the second hooking portion _R1 may have only one hooking portion or may have a plurality of hooking portions. Thus, by forming the first hooking portion _L1 and the second hooking portion _R1 at the above-described positions, when the force from the outside is not strong, or when the position to apply the force is appropriate. _{Even if} it is deviated from the Pressure and peeling forces F, F are easily transmitted. Furthermore, the adhesive portion 19 and the weakly sealed 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 in the storage portions 9 and 11 .

As shown in FIG. 2, the depth D1 in the thickness direction of the unevenness 31, which is the hooking shape of the first hooking portion _L1 or the second hooking portion _R1 , depends on the material and the thickness of the films 5a and 5b. It can be appropriately set 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, and 100 to 100 μm. 150 μm is more preferred. The peel strength can be adjusted by the depth in the thickness direction of the first hooking portion _L1 or the second hooking portion _R1 . If the depth D1 is too large, it tends to be difficult to peel off the entire partitioning weak seal portion 13 after the small container 15 is opened. In addition, when a material having a weak strength is used as the material constituting the films 5a and 5b, the strength of the first hooking portion _L1 or the second hooking portion _R1 is also reduced, and the multiple-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 portion where the first hooking portion _L1 or the second hooking portion _R1 is formed will not delay opening, and the central side (13a) of the partitioning weak seal portion 13 will not be delayed. In addition, the pressure and the peeling forces F, F to the small container 15 become difficult to be transmitted, and a large 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 depth D2 in the thickness direction of the unevenness 31a, which is the hooking shape of the first hooking portion _L1 or the second hooking portion _R1 , is also the same as the depth D1 in FIG. Similarly, it can be appropriately set according to the material and thickness of the films 5a and 5b. The unevenness may be formed by embossing.

The first hooking portion _L1 and the second hooking portion _R1 are preferably formed on the storage portion 11 side where the small container 15 is not arranged. As a result, for example, when pressure is applied to a part of the storage part 11 that stores the drug b, which is the content, the first hook part _L1 and the second hook part _R1 are formed. Unsealing is delayed in a predetermined region of the weak seal portion 13, and the central region 13a of the partition weak seal portion ₁₃ and the small container 15 where the first hook portion L1 and the second hook portion _R1 are not formed. The pressure to and the peeling forces F, F are transmitted more easily.

The shapes of the first hooking portion _L1 and the second hooking portion _R1 are not particularly limited, but may be, for example, a solid line shape, a dotted line shape, or a planar shape. For example, as shown in FIG. 1, the shape of the first hooking portion _L1 and the second hooking portion _R1 is a solid line, so that the pressure and peeling force F on the partitioning weak seal portion 13, F is more likely to be smoothly concentrated on a specific region (for example, central region 13a) of the partitioning weak seal portion 13, thereby making it easier to separate the adhesive portion 19 and the weak seal portion 21 of the small container 15 as well.

In the present embodiment, the first hook _L1 and the second hook _R1 are symmetrical with respect to the central axis (axis α) passing through the center of the container body 5 in the longitudinal direction. preferable. As a result, the pressure and peeling forces F, F applied to the weak partitioning seal portion 13 and the small container 15 are more likely to be uniformly transmitted to the specific region (for example, the central region 13a) of the weak partitioning seal portion 13 .

An end portion E1 of a first hook portion _L1 (first hook body portion) and an end portion of a second hook portion _R1 (second hook body portion) on the central side _of the container body 5 The distance from _E2 is preferably shorter than the lateral width of the small container 15 and longer than half the lateral width. As a result, the pressure and peeling forces F, F are easily transmitted to the small container 15 .

When using the multi-chamber medical container 1, pressure is applied to the container body 5 (for example, part of the second storage part 11) to generate peeling forces F, F in the directions of the arrows as shown in FIG. The weak seal portion 13 is peeled off, and the first storage portion 9 and the second storage portion 11 are unsealed. At this time, the film 5a and the film 5b are caught by each other at the unevenness 31 which is the hooking shape formed in the first hooking portion _L1 and the second hooking portion _R1 . As a result, opening is delayed in the region where the first hooking portion _L1 and the second hooking portion _R1 are formed, and the first hooking portion _L1 and the second hooking portion _R1 are formed. The pressure concentrates on the non-closed area, making it easier to open the desired area (for example, the central side) of the partitioning weak seal portion 13 . Furthermore, as shown in FIGS. 3 and 4, the weakly sealed portion 21 of the small container 15 is peeled and unsealed by the transmission of the above peeling forces F, F, and the drug c inside the small container 15 is released into the plurality of storage portions 9 . , 11. A portion of or the vicinity of the partitioning weak seal portion 13 in which the first hook portion _L1 and the second hook portion _R1 are formed is later unsealed due to the outflow of the content (medicine). This is preferable because the mixing of the contents in the multiple-chamber medical container 1 is further promoted.

In FIG. 2, since the bonding 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 peeling property of the weak seal portion 21, and as shown in FIG. It becomes possible to unseal it reliably as shown in . In addition, since the bonding portion 19 is formed outside the small container 15, the internal medicine c is not affected by the heat generated during fusion bonding, and the quality of the internal medicine c can be maintained satisfactorily.

(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 _L2 includes a first hooking body portion _l1 formed from one end side of the partitioning weak seal portion 13 to the center side of the container body 5, It has a first hook extending portion _l2 extending from the end portion of the first hook main body portion _l1 on the center side of the container body 5 toward the small container 15 side. Similarly, the second hooking portion _R2 is composed of a second hooking body portion _r1 formed from the other end side of the partitioning weak seal portion 13 to the center side of the container body 5, and a and a second hook extending portion _r2 extending toward the small container 15 from the end portion of the second hook main _body portion r1 on the central side. In this way, the first hook extending portion _{l2 and the second hook extending portion l2} and the second hook extending from the ends of the first hook main body portion _l1 and _{the second} hook main body portion r1 to the small container 15 side. By having the hook extending portion _r2 , the pressure and the peeling force F, F to the central side (central region 13a) of the partitioning weak seal portion 13 and the small container 15 are easily transmitted. be.

(Third embodiment)
FIG. 6 is a plan view of a multi-chamber medical container according to the third embodiment. As shown in FIG. 6 _, the first hook extending portion _l3 of the first hook portion L3 extends further toward the small container 15 than the first hook extending portion _l2 in FIG. exist. Similarly, the second hook extending portion _r3 of the second hook portion _R3 extends further toward the small container ₁₅ than the second hook extending portion r2 in FIG. . As a result, the pressure and the peeling forces F, F to the small container 15 can be more easily transmitted, which is a preferable aspect.

(Fourth embodiment)
FIG. 7 is a plan view of a multiple-chamber medical container according to the fourth embodiment. As shown in FIG. 7, the partitioning weak seal portion 13 of the container body 5 is a crease portion when the multiple-chamber medical container 1 is stored in a shipping box or the like, for example. A half-fold line 25 passing through the center of and perpendicular to the axis α may be provided. In the medical multiple-chamber container 1 of the fourth embodiment, a second One auxiliary hook portion L ₁₁ and a second auxiliary hook portion R ₁₁ may be formed. Thus, 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 . For example, when the multi-chamber medical container 1 is transported and folded in half at the boundary of the half-fold line 25, pressure is applied by the weight of the stack. Also, the pressure and peeling forces F, F tend to be difficult to be transmitted. The shapes of the first auxiliary hook L ₁₁ and the second auxiliary hook R ₁₁ are not particularly limited. is preferably

(Fifth embodiment)
FIG. 8 is a plan view of the medical multiple-chamber container of the fifth embodiment. As shown in FIG. 8, the shape of the partitioning weak seal portion 13A may be, for example, a shape in which a triangle or a trapezoid and a rectangle are combined. In addition, the first hooking portion _L3 and the second hooking portion _R3 are provided along the shape of the partitioning weak seal portion 13A, and the first hooking main body in the first hooking portion _L3 The angle θ ₁ between the portion l ₄ and the first hook extension portion l ₅ is preferably 90° to less than 180°, more preferably 110° to 150°, and even more preferably 120° to 140°. ° may be The same applies to the angle θ 2 at the second hooking portion R ₃ . By setting the angle θ ₁ at the first hooking portion L _{3 and} the angle θ ₂ at the second hooking portion R ₃ within the above ranges, The pressure and the peeling forces F, F to the central side (central region 13a) of the partitioning weak seal portion 13 and the small container 15 are easily transmitted.

(Sixth to ninth embodiments)
9 to 12 are plan views of multi-chamber medical containers according to sixth to ninth embodiments. Like the shapes of the first hooking portion _L4 and the second hooking portion _R4 of the sixth embodiment shown in FIG. 9, they may be arcuate instead of linear. Further, as in the seventh embodiment shown in FIG. 10, spaces are formed between the first hooking portion _L5 and/or the second hooking portion _R5 and the weak partition seal portion 13. may be According to the seventh embodiment, although it is preferable in that the area of the partitioning weak seal portion can be reduced, there are cases where the space or the space may be omitted from the viewpoint of the sterilization process. Furthermore, as in the eighth embodiment shown in FIG. 11, the ends (E ₅ , E ₆ ) of the first hooking portion L ₆ and/or the second hooking portion R ₆ are It does not have to be in contact with 3. As in the ninth embodiment shown in FIG. 12, the first hooking portion _L7 and/or the second hooking portion _R7 are formed so as to partially overlap the partitioning weak seal portion 13. good too.

(Production method)
The method for manufacturing a multi-chamber container according to the present embodiment includes a step of forming a partitioning weak seal portion 13 so as to partition the container body 5 into a plurality of storage portions 9 and 11; A step of forming a first hook _L1 on at least a part of or in the vicinity of the central side of the partition weak seal portion 13; and forming a portion _R1 . According to this manufacturing method, even if the force from the outside to the multi-chamber container 1 is not sufficiently strong or the position where the force is applied is not appropriate, the plurality of storage portions 9 and 11 and the small container 15 can be unsealed. It is possible to manufacture a multi-chamber container 1 in which the content is easily mixed.

In the step of forming the partitioning weak seal portion 13, the partitioning weak seal portion 13 is preferably formed by heat-sealing. It is preferable to form the first hook portion and the second hook portion when the partitioning weak seal portion 13 is cooled. As molds, 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 mold 41 and the lower mold 43, the unevenness 31 having a hook shape can be formed. Further, as shown in FIG. 13(b), by pressing with an upper mold 41A having a flat surface and a lower mold 43A having a convex portion 43b, an unevenness 31a having a hook shape may be formed. . Here, the upper molds 41 and 41A and the lower molds 43 and 43A are preferably molds for cooling the partitioning weak seal portion 13 . Moreover, although not shown, a concave portion may be provided on the plane of the upper mold 41A. In this way, by forming the first hooking portion and the second hooking portion with a mold for cooling the heat-sealed partitioning weak seal portion 13 when cooling the partitioning weak seal portion 13, the conventional It is possible to manufacture a multi-chamber container in which a plurality of storage sections and small containers are easily opened and the contents are easily mixed without increasing the number of manufacturing processes compared to the manufacturing method of (1).

In the above embodiment, an embodiment of a multi-chamber container for medical use is described as an example, but this embodiment is not limited to medical use, and for example, a multi-chamber container for food good. In the case of a multi-chamber container for food, for example, the contents are fluid food, and the outlet serves as a food outlet for discharging the food to the outside of the container.

DESCRIPTION OF SYMBOLS 1... Multi-chamber container for medical use 3... Periphery part 5... Container main body 5a, 5b... Film which comprises a container main body 7... Discharge port 9... First storage part 11... Second storage portion 13 Weak seal portion for partitioning 13a Central region 13b Long side 15 on small container side Small containers 15a, 15b Films 17 constituting small containers Hanging hole 19 Adhering portion 21 Weak seal portions 23a, 23b Extension portion 25 Folding lines 31, 31a Unevenness 41 Upper mold 41a Recessed portion 43 Lower molds 43a, 43b Convex portions L, L ₁ to L ₇ First hooks R, R ₁ to R ₇ Second hooks E ₁ to E ₈ ... the end α of the first hook or the second hook ... shaft

Claims (6)

a container body having a first storage portion and a second storage portion arranged in the longitudinal direction;
a partition weak seal portion that partitions the container body into the first storage portion and the second storage portion;
A multi-chamber container comprising a small container arranged in the first storage part,
The small container has a weak seal portion that is opened when the partition weak seal portion is opened,
The partitioning weak seal portion has a central region and a pair of regions sandwiching the central region in a crossing direction that intersects the longitudinal direction,
The central region and the weak seal portion are aligned in the longitudinal direction,
In the longitudinal direction, each of the pair of regions is located closer to the second storage portion than the weak seal portion,
The multi-chamber container is
a first hook provided in one of the pair of regions and extending along the intersecting direction;
a second hook provided in the other of the pair of regions and extending along the intersecting direction;
a first auxiliary hooking portion which is the first storage portion and which is provided at a part of or near the weak partitioning seal portion and/or the small container;
The first storage part further comprises a second auxiliary hook part provided in a part of or near the weak seal part for partitioning and / or the small container,
The first hook and the second hook are separated from each other,
The first hook portion and the second hook portion are provided in the second storage portion,
Multi-chamber container. The first hook portion includes a first hook body portion and a first hook extending from an end portion of the first hook body portion on the center side of the container body toward the small container. an extension and
The second hook portion includes a second hook body portion and a second hook extending from an end portion of the second hook body portion on the center side of the container body toward the small container. A multi-compartment container according to claim 1 , comprising an extension. The angle formed by the first hook body and the first hook extension is 90° or more and less than 180°, and/or the second hook body and the second hook extension 3. The multi-chamber container according to claim 2 , wherein the angle formed with the existing portion is 90[deg.] or more and less than 180[deg.]. The distance between the end of the first hook main body and the end of the second hook main body on the center side of the container body is shorter than the width of the small container and half the width of the small container. 4. A multi-compartment container according to claim 2 or 3 , longer than one of . The multi-chamber container according to any one of claims 1 to 4, wherein at least one of said first auxiliary hook and said second auxiliary hook extends in a solid line. The multiple-chamber container according to any one of claims 1 to 5 , wherein the multiple-chamber container is a medical or food multiple-chamber container.

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