Multi-chamber container

Abstract

To provide a multi-chamber container whose main body houses a small container, in which the contents are easily mixed even if force from outside is not strong enough and the position where the force is applied is not suitable.SOLUTION: A multi-chamber container 1 includes: a container main body 5 having a plurality of storage sections 9, 11; a discharge port 7; a weak partition seal 13 that partitions the container main body 5 into the plurality of storage sections 9, 11 and raises the pressure inside the storage sections, thereby allowing the plurality of storage sections 9, 11 to open and communicate with each other; and a small container 15 that is disposed in one of the plurality of storage parts 9 and 11 and is opened when the weak partition seal 13 communicates for opening. The multi-chamber container 1 further includes: a first hooking portion L1 formed at least in a part of or near the center from one end of the weak partition seal 13; and a second hooking portion R1 formed at least in a part of or near the center from the other end of the weak partition seal 13, the first hooking portion L1 and the second hooking portion R1 not touching each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a multi-chamber container and a method for manufacturing the multi-chamber container. [Background technology]

[0002] Among the drugs administered to patients by intravenous injection, there are some that are unstable and undergo undesirable changes over time when mixed in advance. For example, when an amino acid infusion and a glucose infusion are mixed and stored, the mixture turns brown due to the so-called Maillard reaction. Also, when a fat emulsion and an electrolyte solution are mixed and stored, the fat content will coagulate, and when a phosphate-containing solution and a calcium-containing solution are mixed, calcium phosphate will precipitate, causing undesirable changes.

[0003] For such medicines, multi-chamber medical containers that individually store the components before mixing are often used. These multi-chamber medical containers are equipped with multiple storage sections that individually store the medicines and partition weak seal sections that separate the storage sections and can be peeled off by applying pressure from the outside (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-136570 A [Patent Document 2] International Publication No. 03 / 092574 Summary of the Invention [Problem to be solved by the invention]

[0005] 14 to 16 are explanatory views showing an example of such a conventional multi-chamber medical container, where FIG. 14 is a plan view, FIG. 15 is a cross-sectional view taken along line XX in FIG. 14, and FIG. 16 is a cross-sectional view when opened.

[0006] As shown in Fig. 14, the multi-chamber container 1 has a container body 5 formed into a rectangular shape with its periphery 3 bonded together, and the inside of the container body 5 is divided into a first storage section 9 and a second storage section 11 by a partition section 13, and each storage section 9, 11 stores various drugs a, b that are undesirable if mixed or dissolved in advance, and further, a small container 15 is provided in one of the storage sections 9, 11 (first storage section 9 in Fig. 14), and a drug c is stored in the small container 15. This small container 15 has an adhesive section 21 provided on the inner surface of the films 15a, 15b of the small container 15, which are inside the films 5a, 5b that constitute the container body 5, as shown in an enlarged cross section in Fig. 15. As shown in Figure 16, when a force is applied from the outside of the container body 5, pressure is applied to the partition 13 to apply peeling forces F, F, the first storage section 9 and the second storage section 11 are opened, and the drugs a and b are mixed, the adhesive section 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 each storage section 9, 11 (see, for example, Patent Document 2).

[0007] However, if the pressure and peeling forces F, F on the partition 13 are insufficient, for example, because the external force on the multi-chamber container is not strong enough or because the position at which the force is applied is not appropriate, the adhesive portion 21 of the small container 15 will not peel off, and the drug c, which is the content inside the small container 15, may not be mixed with the drugs a, b, which are the contents of each storage section 9, 11.

[0008] In order to solve the above-mentioned problems, the present invention aims to provide a multi-chamber container and a method for manufacturing a multi-chamber container in which a small container is stored within a container body, and in which multiple storage sections or small containers can be easily opened and the contents can be easily mixed together even when external force applied to the multi-chamber container is not strong enough or the position at which force is applied is not appropriate. [Means for solving the problem]

[0009] The present inventors have conducted extensive research into the structure of a multi-chamber container and have discovered a multi-chamber container that can solve the above problems. In other words, the present invention provides a multi-chamber container comprising a container body having multiple storage sections, an outlet connected to the storage sections, a weak partition seal section which divides the container body into multiple storage sections and connects the multiple storage sections to each other when opened by increasing the pressure within the storage sections, and a small container which is disposed in one of the multiple storage sections and is opened together with the opening and closing of the weak partition seal section, and further comprising a first hook section formed in at least a portion or in the vicinity of one end side of the weak partition seal section toward the center, and a second hook section formed in at least a portion or in the vicinity of the other end side of the weak partition seal section, wherein the first hook section and the second hook section do not come into contact with each other.

[0010] The multi-chamber container of the present invention has a first hook portion at least in a part or in the vicinity of one end side of the partition weak seal portion toward the center, and a second hook portion at least in a part or in the vicinity of the other end side of the partition weak seal portion toward the center. This makes it easier for pressure and peeling forces F, F to be transmitted to the part of the partition weak seal portion where the first hook portion and the second hook portion are not formed (the center side of the partition weak seal portion), making it easier for the adhesive portion and weak seal portion of the small container to peel off, and making it easier for the contents in the small container to mix with the contents of each storage portion, even if the external force is not strong or the position where the force is applied is shifted from the appropriate portion.

[0011] In addition, the present invention is preferably a multi-chamber container in which the first and second hooks are formed on the side of the storage section where the small container is not placed, which makes it easier for pressure and peeling forces F, F to be transmitted to the center side of the partition weak seal and to the small container.

[0012] In the multi-chamber container of the present invention, it is preferable that the first hook portion has a first hook body portion and a first hook extension portion extending from an end of the first hook body portion at the center of the container body toward the small container side, and the second hook portion has a second hook body portion and a second hook extension portion extending from an end of the second hook body portion at the center of the container body toward the small container side. This makes it easier to transmit pressure and peeling forces F, F to the center side of the partition weak seal portion and the small container.

[0013] In the present invention, the first hook portion and / or the second hook portion may be formed in a solid line. By forming the first hook portion and / or the second hook portion in a solid line, the pressure and peeling forces F, F are easily transmitted to the center side of the partition weak seal portion and the small container.

[0014] In the multi-chamber container of the present invention, it is preferable that the angle between the first hook body and the first hook extension is 90° or more and less than 180°, and / or the angle between the second hook body and the second hook extension is 90° or more and less than 180°. This makes it easier for pressure and peeling forces F, F to be transmitted to the center side of the partition weak seal portion and the small container.

[0015] In the present invention, the distance between the end of the first hook body and the end of the second hook body at the center of the container body is preferably shorter than the width of the small container and longer than half the width, which makes it easier to transmit pressure and peeling forces F, F to the small container.

[0016] In the multi-chamber container of the present invention, it is preferable that the first hook portion and / or the second hook portion include unevenness formed by embossing. The region in which the first hook portion and / or the second hook portion including unevenness formed by embossing is formed will delay opening, and therefore pressure and peeling forces F, F will be easily transmitted to the center side of the partition weak seal portion and the small container.

[0017] In the present invention, it is also preferable that the first hook portion and the second hook portion are symmetrical with respect to a central axis passing through the center of the container body in the longitudinal direction, so that the pressure and peeling forces F, F are easily transmitted uniformly to the partition weak seal portion and the small container.

[0018] Moreover, the multi-chamber container of the present invention preferably further comprises a first auxiliary hook portion and / or a second auxiliary hook portion formed on the side of the storage section where the small container is placed, in or near the partition weak seal portion and / or the small container, which makes it easier to transmit pressure and peeling forces F, F to the weak seal portion of the small container.

[0019] The multi-chamber container of the present invention may be for medical or food use. Such a multi-chamber container that combines ease of opening and sealability during transportation can be used as a medical multi-chamber container, and can also be used for food.

[0020] The present invention provides a method for manufacturing the multi-chamber container, comprising the steps of forming a partitioning weak seal portion so as to partition the container body into a plurality of storage portions, forming a first hook portion at least partially from one end side of the partitioning weak seal portion to the center or in the vicinity thereof, and forming a second hook portion at least partially from the other end side of the partitioning weak seal portion to the center or in the vicinity thereof. According to this manufacturing method, it is possible to manufacture a multi-chamber container in which the plurality of storage portions or small containers are easily opened and the contents are easily mixed, even when the external force applied to the multi-chamber container is not strong enough or when the position at which the force is applied is not appropriate.

[0021] In the step of forming the weak partition seal portion, the weak partition seal portion is preferably formed by heat sealing, and the first hook portion and the second hook portion are preferably formed by a mold that cools the heat-sealed weak partition seal portion when the weak partition seal portion is cooled. This makes it possible to manufacture a multi-chamber container in which multiple storage compartments or small containers are easily opened and the contents are easily mixed, without increasing the number of manufacturing steps compared to conventional manufacturing methods. Effect of the Invention

[0022] According to the present invention, it is possible to provide a multi-chamber container and a method for manufacturing a multi-chamber container in which a small container is stored within a container body, in which multiple storage sections or small containers can be easily opened and the contents can be easily mixed even if the external force applied to the multi-chamber container is not strong enough or if the position at which the force is applied is not appropriate. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a plan view of a multi-chamber medical container according to a first embodiment. [Diagram 2] FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG. [Diagram 3] 2 is a modified example of a partially enlarged cross-sectional view taken along line AA in FIG. [Figure 4] 1 is an enlarged cross-sectional view showing a state in which the multi-chamber medical container of the first embodiment is peeled open. FIG. [Diagram 5] FIG. 11 is a plan view of a multi-chamber medical container according to a second embodiment. [Figure 6] FIG. 11 is a plan view of a multi-chamber medical container according to a third embodiment. [Figure 7] FIG. 13 is a plan view of a multi-chamber medical container according to a fourth embodiment. [Figure 8] FIG. 13 is a plan view of a multi-chamber medical container according to a fifth embodiment. [Figure 9] FIG. 13 is a plan view of a multi-chamber medical container according to a sixth embodiment. [Figure 10] FIG. 13 is a plan view of a multi-chamber medical container according to a seventh embodiment. [Figure 11] FIG. 13 is a plan view of a multi-chamber medical container according to an eighth embodiment. [Figure 12] FIG. 13 is a plan view of a multi-chamber medical container according to a ninth embodiment. [Figure 13] 4 is an enlarged cross-sectional view of a main part when a first hook portion and a second hook portion are formed in a manufacturing method of the present embodiment. FIG. [Figure 14] FIG. 1 is a plan view of a conventional multi-chamber container. [Figure 15] FIG. 15 is an enlarged cross-sectional view of a portion taken along line XX in FIG. 14. [Figure 16] 15 is a cross-sectional view showing the state in which the multi-chamber container shown in FIG. 14 has been peeled open. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a multi-chamber container according to the present invention will be described with reference to the drawings. The multi-chamber container of this embodiment is a multi-chamber container comprising a container body having multiple storage sections, an outlet connected to the storage sections, a weak partition seal section that divides the container body into multiple storage sections and opens and connects the multiple storage sections to each other by increasing the pressure within the storage sections, and a small container that is disposed in one of the multiple storage sections and is opened together with the opening and connection of the weak partition seal section, and further comprises a first hook section formed in at least a portion or near the center from one end side of the weak partition seal section, and a second hook section formed in at least a portion or near the center from the other end side of the weak partition seal section, wherein the first hook section and the second hook section do not contact each other.

[0025] (First embodiment) Fig. 1 is a plan view of a multi-chamber medical container according to a first embodiment of the present invention, and Fig. 2 is an enlarged sectional view taken along line AA in Fig. 1. Fig. 3 is an enlarged sectional view taken along line AA, showing a modified example of Fig. 2. Fig. 4 is an enlarged sectional view showing a multi-chamber medical container 1 according to one embodiment of the present invention in a peeled-open state.

[0026] As shown in FIG. 1, the medical multi-chamber container 1 is provided with a container body 5 formed in a rectangular shape with a peripheral portion 3 bonded thereto, and a drug outlet 7 having a rubber stopper connected to the container body 5 for discharging the drug. The container body 5 has a first storage section 9 and a second storage section 11 arranged in the longitudinal direction, and the two storage sections 9, 11 are separated by a peelable weak seal section 13 for partitioning. The first storage section 9 and the second storage section 11 each store various drugs a, b as contents that are undesirable to be mixed or dissolved in advance. The axis α is a central axis passing through the center of the container body 5 in the longitudinal direction.

[0027] The multi-chamber medical container 1 may be a bag-shaped container formed by heat-bonding or gluing the peripheral portions of two single-layer or multi-layer films. As a material for forming the container body 5 of the multi-chamber medical container 1, films made of various resins such as thermoplastic resins such as polyethylene, polypropylene, and polystyrene can be used. A hanging hole 17 is provided on the peripheral portion 3 of the multi-chamber medical container 1, and the multi-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.

[0028] In order to adjust the pressure required to peel off the partition weak seal portion 13, for example, when melting and bonding a film made of a thermoplastic resin, the heat bonding time of the partition weak seal portion 13 may be shorter than the heat bonding time of the peripheral portion 3 of the container body 5. Alternatively, the bonding pressure of the partition weak seal portion 13 may be lower than the bonding pressure of the peripheral portion 3 of the container body 5. This makes it possible to adjust the bonding strength of the partition weak seal portion 13 to be weaker than the bonding strength of the peripheral 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 shape in which the width in the vertical direction (longitudinal direction) is thick from both ends in contact with the peripheral portion 3 to the center of the container body 5, and the width in the vertical direction (longitudinal direction) is thin in a central region 13a parallel to a part of the small container 15 described later. In this way, by reducing the vertical width of the central region 13a of the partition weak seal portion 13, when the external force is not strong or when the position where the force is applied is shifted from the appropriate portion, the pressure and peeling forces F, F are easily transmitted to a specific region (e.g., central region 13a) of the partition weak seal portion 13. Furthermore, the adhesive portion and weak seal portion of the small container 15 described later are also easily peeled off. Therefore, the contents in the small container 15 are easily mixed with the contents of each storage portion 9, 11, which is preferable.

[0029] A small container 15 for storing a drug c may be provided in the first storage section 9 of the multi-chamber medical container 1. The central axis of the small container 15 in the longitudinal direction may overlap with the axis α of the container body 5. This makes it easier for the pressure and peeling forces F, F applied to the specific area of ​​the partition weak seal portion 13 to be transmitted to the small container 15.

[0030] The small container 15 is preferably a bag-shaped container formed by, for example, heat-bonding the periphery of two overlapping films 15a and 15b as shown in Figures 1 and 2. The two films 15a and 15b are preferably of a three-layer structure, for example, an inner layer made of polyethylene, a middle layer made of polycyclic olefin, and an outer layer made of polyethylene.

[0031] A weak seal portion 21 may be provided on the side of the partitioning weak seal portion 13 of the small container 15, which is peeled off and opened together with the opening of the partitioning weak seal portion 13, to allow the small container 15 to communicate with the first storage portion 9. The width of the weak seal portion 21 may be approximately the same as the width in the lateral direction of the central region 13a of the partitioning weak seal portion 13. The pressure required to peel off the weak seal portion 21 of the small container 15 may be adjusted by shortening the heat bonding time of the weak seal portion 21 compared to the heat bonding time of the other peripheral portions of the small container 15, as in the case of sealing the partitioning weak seal portion 13 of the container body 5 and the peripheral portion 3. Alternatively, the bonding pressure of the weak seal portion 21 may be adjusted by bonding at a pressure lower than the bonding pressure of the peripheral portion of the small container 15.

[0032] The adhesive portion 19 of the small container 15 to the container body 5 may be formed on the extensions 23a, 23b of the films 15a, 15b constituting the small container 15 at the outer side of the weak seal portion 21 as shown in Fig. 2. The extensions 23a, 23b may be bonded in a continuous line over almost the entire length in the short side direction (horizontal direction). For example, a means such as thermal bonding is preferably used as the adhesive means.

[0033] The width B (see FIG. 2) of the extensions 23a, 23b in the longitudinal direction (vertical direction) may be sufficient when the small container 15 is adhered to the films 5a, 5b that constitute the container body 5, and is specifically 3 mm to 20 mm, and more preferably 5 mm to 15 mm. The width in the lateral direction of the extensions 23a, 23b in FIG. 1 may be approximately the same as the width in the lateral direction of the weak seal portion 21.

[0034] In the multi-chamber medical container 1, a first hook portion L is provided at least partially or in the vicinity of one end of the partition weak seal portion 13 toward the center. 1 In addition, a second hook portion R is formed at least partially or in the vicinity of the other end side of the partition weak seal portion 13 toward the center. 1 The first hook portion L 1 and the second hook portion R 1 The first and second hook portions L are arranged apart from each other so as not to come into contact with each other, and a hook shape may be provided in a part of or near the partitioning weak seal portion 13 so that a predetermined area of ​​the partitioning weak seal portion 13 is difficult to open (open). For example, as shown in FIG. 2, the hook shape may be formed by an inclined unevenness 31. 1 and the second hook portion R 1 The first hooking portion L may have only one hooking portion or may have multiple hooking portions. 1 and the second hook portion R 1 By forming the first hook portion L at the above position, even if the external force is not strong or if the position where the force is applied is shifted from the appropriate portion, the first hook portion L 1 and the second hook portion R 1 In this case, the pressure and peeling forces F, F are easily transmitted to specific regions (e.g., central region 13a) of partition weak seal portion 13 where no pressure is formed. Furthermore, adhesive portion 19 and weak seal portion 21 of small container 15 also become easily peeled off, and the contents of small container 15 tend to mix with the contents of each storage portion 9, 11.

[0035] As shown in FIG. 2, the first hook portion L 1 Or the second hook R 1 The depth D1 in the thickness direction of the projections and recesses 31, which are the hooking shapes, can be appropriately set according to the material and thickness of the films 5a, 5b. When the films 5a, 5b are made of a thermoplastic resin such as polyethylene, polypropylene, polystyrene, etc., and the total thickness of the films 5a, 5b is, for example, 250 to 300 μm, the depth D1 is preferably 50 to 200 μm, and more preferably 100 to 150 μm. 1 Or the second hook R 1The peel strength can be adjusted by adjusting the depth in the thickness direction of the first hook portion L. 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. In addition, if a material with low strength is used to compose the films 5a and 5b, the first hook portion L 1 Or the second hook R 1 If the depth D1 is too small, the strength of the first hook portion L 1 Or the second hook R 1 As a result, the opening of the portion where this is formed is not delayed, and the pressure and peeling forces F, F are not easily transmitted to the central side (13a) of the partition weak seal portion 13 and the small container 15, and a great deal of force tends to be required to peel and open the weak seal portion 21 of the small container 15.

[0036] As shown in FIG. 3, the first hook portion L 1 Or the second hook R 1 The depth D2 in the thickness direction of the projections and recesses 31a, which are the hook shapes, can be appropriately set according to the material and thickness of the films 5a and 5b, similar to the depth D1 in Fig. 2. The projections and recesses may be formed by embossing.

[0037] First hook part L 1 and the second hook portion R 1 It is preferable that the first hook portion L is formed on the side of the storage portion 11 where the small container 15 is not arranged. In this way, when pressure is applied to a part of the storage portion 11 that stores the content, for example, the drug b, the first hook portion L 1 and the second hook portion R 1 The opening of the partition weak seal portion 13 is delayed in a predetermined area where the first hook portion L 1 and the second hook portion R 1 Therefore, the pressure and peeling forces F, F are more easily transmitted to the central region 13a of the partitioning weak seal portion 13 where no gap is formed and to the small container 15.

[0038] First hook part L 1 and the second hook portion R 1The shape of the first hook portion L is not particularly limited, and may be, for example, a solid line, a dotted line, or a plane. For example, as shown in FIG. 1 and the second hook portion R 1 Because the shape of the solid line, the pressure and peeling forces F, F on the partition weak seal portion 13 tend to be smoothly concentrated in a specific area (e.g., the central area 13a) of the partition weak seal portion 13, making it easier to peel off the adhesive portion 19 and the weak seal portion 21 of the small container 15.

[0039] In this embodiment, the first hook portion L is determined based on a central axis (axis α) that passes through the center of the container body 5 in the longitudinal direction. 1 and the second hook R 1 This makes it easier for the pressure and peeling forces F, F applied to the partitioning weak seal portion 13 and the small container 15 to be uniformly transmitted to a specific region (for example, the central region 13a) of the partitioning weak seal portion 13.

[0040] The first hook portion L at the center of the container body 5 1 End E of (first hook body) 1 and the second hook R 1 End E of (second hook body) 2 It is preferable that the distance between the small container 15 and the peeling force F is shorter than the width of the small container 15 and longer than half the width of the small container 15. This makes it easier to transmit the pressure and peeling forces F, F to the small container 15.

[0041] When using the multi-chamber medical container 1, pressure is applied to the container body 5 (for example, a part of the second storage section 11) to generate peeling forces F, F in the direction of the arrows as shown in FIG. 2, peeling the partition weak seal section 13, and opening the first storage section 9 and the second storage section 11. At this time, the first hook section L 1 and the second hook R 1 The films 5a and 5b are hooked to each other at the projections and recesses 31 that are formed in the first hooking portion L. 1 and the second hook R 1 The region where the first hook portion L 1and the second hook portion R 1 As a result, pressure is concentrated in the area where the first hook portion L is not formed, and the desired area (e.g., the center side) of the partitioning weak seal portion 13 becomes easier to open. Furthermore, as shown in Figs. 3 and 4, the weak seal portion 21 of the small container 15 is peeled open by the transmission of the peeling forces F, F, and the drug c inside the small container 15 flows out into the multiple storage portions 9, 11. 1 and the second hook R 1 A part of or near the partitioning weak seal portion 13 where the above-mentioned is formed will be opened later due to leakage of the contents (medicine). This is preferable because it further promotes mixing of the contents in the multiple-chamber medical container 1.

[0042] In Fig. 2, the adhesive part 19 is located at a position other than the weak seal part 21, so that in the case of, for example, melt adhesion by heat, the heat does not affect the ease of peeling of the weak seal part 21, and it becomes possible to reliably open the package as shown in Fig. 4. In addition, since the adhesive part 19 is located on the outside of the small container 15, the medicine c inside is not affected by the heat during melt adhesion, and the quality of the medicine c inside can be well maintained.

[0043] Second embodiment 5 is a plan view of the multi-chamber medical container of the second embodiment. As shown in FIG. 2 The first hook body portion 11 is formed from one end side of the partition weak seal portion 13 to the center side of the container body 5. 1 and the first hook body portion l at the center side of the container body 5 1 A first hook extension portion l extending from the end of the small container 15 side 2 Similarly, the second hook portion R 2 The second hook body portion r is formed from the other end side of the partition weak seal portion 13 to the center side of the container body 5. 1 and the second hook body portion r at the center side of the container body 5 1 A second hook extension portion r extending from the end of the small container 15 side 2 In this way, the first hook body portion l 1 and the second hook body portion r1 A first hook extension portion l extending from the end of the small container 15 side 2 and the second hook extension r 2 This is a preferred embodiment since it makes it easier for the pressure and peeling forces F, F to be transmitted to the center side (center region 13a) of the partitioning weak seal portion 13 and the small container 15.

[0044] Third embodiment 6 is a plan view of the multi-chamber medical container of the third embodiment. As shown in FIG. 3 The first hook extension portion l 3 The first hook extension portion l in FIG. 2 The second hook portion R extends toward the small container 15 side. 3 The second hook extension r 3 is the second hook extension portion r in FIG. 2 4. In this case, the pressure and peeling forces F, F are more easily transmitted to the small container 15, which is a preferred embodiment.

[0045] (Fourth embodiment) Fig. 7 is a plan view of the multi-chamber medical container of the fourth embodiment. As shown in Fig. 7, the partitioning weak seal part 13 of the container body 5 may be provided with a half-fold line 25 that passes through the center of the container body 5 in the longitudinal direction and is perpendicular to the axis α, and is a fold part when the multi-chamber medical container 1 is stored in a shipping box or the like. In the multi-chamber medical container 1 of the fourth embodiment, a first auxiliary hook part L is provided on the side of the storage part 9 where the small container 15 is arranged, in a part of or near the partitioning weak seal part 13 and / or the small container 15. 11 , second auxiliary hook R 11 In this way, the first auxiliary hook portion L 11 , second auxiliary hook R 11 The first hook portion L 2 , second hook R 2By arranging the first auxiliary hook portion L apart from the first auxiliary hook portion L, even if pressure is applied due to the weight of the stacked containers when the containers are folded in half along the folding line 25 during transportation of the multi-chamber medical container 1, the pressure and peeling force F, F tend not to be transmitted. 11 , second auxiliary hook R 11 The shape of is not particularly limited, but is preferably a solid line from the viewpoint of facilitating the transmission of pressure and peeling forces F, F to the small container 15 when opening.

[0046] Fifth embodiment 8 is a plan view of the multi-chamber medical container of the fifth embodiment. As shown in FIG. 8, the shape of the partition weak seal portion 13A may be, for example, a combination of a triangle or a trapezoid and a rectangle. In addition, the first hook portion L 3 and the second hook portion R 3 is provided along the shape of the partition weak seal portion 13A, and the first hook portion L 3 The first hook body part l 4 and the first hook extension l 5 Angle θ 1 The second hooking portion R is preferably 90° to less than 180°, more preferably 110° to 150°, and further preferably 120° to 140°. 3 Angle θ at 2 The same is true for the first hook portion L 3 Angle θ at 1 , second hook R 3 Angle θ at 2 When the thickness is in the above range, the pressure and peeling forces F, F are easily transmitted to the center side (center region 13a) of the partitioning weak seal portion 13 and the small container 15.

[0047] (Sixth to Ninth Embodiments) 9 to 12 are plan views of the multi-chamber medical containers of the sixth to ninth embodiments. 4 and the second hook portion R 4 The shape of the first hook portion L may be an arc shape instead of a straight shape as in the seventh embodiment shown in FIG.5 and / or the second hook R 5 A space may be formed between the first hook portion L and the partitioning weak seal portion 13. According to the seventh embodiment, it is preferable in that the area of ​​the partitioning weak seal portion can be reduced, but from the viewpoint of sterilization, the space may not be necessary. Furthermore, as in the eighth embodiment shown in FIG. 11, 6 and / or the second hook R 6 is the end (E 5 , E 6 ) may not be in contact with the peripheral portion 3 of the container body 5. As in the ninth embodiment shown in FIG. 7 and / or the second hook R 7 may be formed so as to overlap a part of the partitioning weak seal portion 13.

[0048] (Manufacturing method) The method for manufacturing the multi-chamber container of this 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, and a step of forming a first hook portion L at least partially or in the vicinity of one end side of the partitioning weak seal portion 13 toward the center. 1 and forming a second hook portion R at least in a part or in the vicinity of the other end side of the partition weak seal portion 13 toward the center. 1 According to this manufacturing method, even if the external force applied to the multi-chamber container 1 is not strong enough or the position at which the force is applied is not appropriate, it is possible to manufacture a multi-chamber container 1 in which the multiple storage sections 9, 11 and small containers 15 are easy to open and the contents are easy to mix.

[0049] In the step of forming the weak seal portion 13 for partitioning, the weak seal portion 13 for partitioning is preferably formed by heat fusion, and the first and second hook portions are preferably formed by a die for cooling the weak seal portion 13 for partitioning that has been heat fused. As the die, for example, as shown in FIG. 13(a), an upper die 41 having a recess 41a and a lower die 43 having a protrusion 43a are used. The films 5a and 5b are pressed by the upper die 41 and the lower die 43 to form the unevenness 31 having the hook shape. Alternatively, as shown in FIG. 13(b), the unevenness 31a having the hook shape may be formed by pressing by an upper die 41A having a flat surface and a lower die 43A having a protrusion 43b. Here, the upper die 41, 41A and the lower die 43, 43A are preferably die for cooling the weak seal portion 13 for partitioning. Although not shown, a recess may be provided on the flat surface of upper mold 41A. In this manner, by forming the first and second hook portions using a mold that cools heat-sealed partition weak seal portion 13 while cooling partition weak seal portion 13, it is possible to manufacture a multi-chamber container in which multiple storage portions or small containers are easily opened and the contents are easily mixed, without increasing the number of manufacturing steps compared to conventional manufacturing methods.

[0050] In the above embodiment, a multi-chamber medical container is described as an example, but this embodiment is not limited to medical use and may be, for example, a multi-chamber food container. In the case of a multi-chamber food container, the contents are, for example, liquid food, and the outlet is a food outlet for discharging the food outside the container. [Explanation of symbols]

[0051] 1. Medical multi-chamber container 3. Periphery 5. Container body 5a, 5b: Film constituting the container body 7...Discharge port 9. First storage section 11 Second storage section 13. Weak seal for partition 13a...Central area 13b Long side of small container 15...Small container 15a, 15b: Film constituting a small container 17...hanging hole 19...Adhesive part 21...Weak seal part 23a, 23b...extension part 25... Half-fold line 31,31a...Unevenness 41...Upper mold 41a Recess 43 Lower mold 43a, 43b... Convex portion L, L 1 ~L 7 ...First hook part R, R 1 ~R 7 ...Second hook E 1 ~E 8 End of the first hook portion or the second hook portion α...axis

Claims

1. A container body having a first storage section and a second storage section aligned in a longitudinal direction, a partition weak seal portion that divides the container body into the first storage portion and the second storage portion; A multi-chamber container comprising: a small container disposed in the first storage section; the small container has a weak seal portion that is opened when the partitioning weak seal portion is opened, The partition weak seal portion has a central region and a pair of regions sandwiching the central region in a cross direction crossing the major axis direction, The central region and the weak seal portion are aligned in the major axis direction, Each of the pair of regions protrudes toward the second storage portion in the longitudinal direction relative to the central region. Multi-chamber container.

2. A first hook portion provided in one of the pair of regions and extending along the intersecting direction; A second hook portion is provided in the other of the pair of regions and extends along the intersecting direction, The first hook portion and the second hook portion are spaced apart from each other, The multi-chamber container according to claim 1 , wherein the first hook portion and the second hook portion are provided in the second storage portion.

3. A first hook portion provided in one of the pair of regions and extending along the intersecting direction; A second hook portion is provided in the other of the pair of regions and extends along the intersecting direction, The first hook portion and the second hook portion are spaced apart from each other, The multi-chamber container according to claim 1 , wherein the first hook portion and / or the second hook portion extend in a solid line.

4. The first storage section, comprising a first auxiliary hook portion provided in a part of or near the partition weak seal portion and / or the small container; The first storage section further includes a second auxiliary hook portion provided in a portion or in the vicinity of the partition weak seal portion and / or the small container, 4. The multi-chamber container according to claim 2, wherein the weak seal portion is located between the first auxiliary hook portion and the second auxiliary hook portion in the intersecting direction.

5. A multi-chamber container as described in claim 4, wherein at least one of the first auxiliary hook portion and the second auxiliary hook portion extends in a solid line.

6. The multi-chamber container according to any one of claims 1 to 5, wherein the multi-chamber container is a multi-chamber container for medical or food use.

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