Multi-chamber container

Abstract

To provide a multi-chamber container that allows a plurality of storage parts and small containers to be opened easily, and allows contents to be mixed easily.SOLUTION: A multi-chamber container 1 includes: a container body 5 having a plurality of storage parts 9 and 11; an exhaust port 7 connected to the storage part 11; a weak seal part 13 for partitioning the container body 5 into the plurality of storage parts 9 and 11, and opening / communicating the plurality of storage parts 9 and 11 each other by increasing the pressure inside the storage part; and a small container 15 that is disposed at one of the plurality of storage parts 9 and 11, and is opened concurrently with the opening / communication of the weak-seal part 13 for partitioning. The multi-chamber container 1 further includes: a first hook part L1 that is formed at least at a part of or adjacent to an area from one end side to the central side of the weak-seal part 13 for partitioning and a second hook part R1 that is formed at least at a part of or adjacent to an area from the other end side to the central side of the weak-seal part 13 for partitioning, the first hook part L1 and the second hook part R1 not coming into contact with 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 multi-chamber container for medical use, 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 the 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 portion 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 above-mentioned medical multi-chamber container 1, a first hook portion L1 is formed at least in a part or in the vicinity of one end side of the partition weak seal portion 13 toward the center. Also, a second hook portion R1 is formed at least in a part or in the vicinity of the other end side of the partition weak seal portion 13 toward the center. The first hook portion L1 and the second hook portion R1 are arranged apart so as not to contact each other, and a hook shape may be provided at a part or in the vicinity of the partition weak seal portion 13 so that a predetermined area of ​​the partition weak seal portion 13 is difficult to open (open), and may be an uneven shape formed by an inclined unevenness 31, for example, as shown in FIG. 2. Also, the first hook portion L1 and the second hook portion R1 may have only one hooking portion or may have multiple hooking portions. In this way, by forming the first hook portion L1 and the second hook portion R1 at the above positions, even if the external force is not strong or 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 area (e.g., the central area 13a) of the partition weak seal portion 13 where the first hook portion L1 and the second hook portion R1 are not formed. Furthermore, the adhesive portion 19 and the weak seal portion 21 of the small container 15 also become easily peeled off, and the contents in the small container 15 are easily mixed with the contents of each storage portion 9, 11.

[0035] As shown in FIG. 2, the depth D1 in the thickness direction of the unevenness 31, which is the hook shape of the first hook portion L1 or the second hook portion R1, can be appropriately set according to the material and thickness of the films 5a and 5b. When the films 5a and 5b are made of thermoplastic resin such as polyethylene, polypropylene, polystyrene, etc., 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, more preferably 100 to 150 μm. The peel strength can be adjusted by the depth in the thickness direction of the first hook portion L1 or the second hook portion R1. 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. Furthermore, if a weak material is used to compose the films 5a and 5b, the strength of the first hook portion L1 or the second hook portion R1 will also decrease, which is undesirable since it may damage the multi-chamber medical container 1. On the other hand, if the depth D1 is too small, the opening will not be delayed at the portion where the first hook portion L1 or the second hook portion R1 is formed, and the pressure and peeling forces F, F to the center side (13a) of the partition weak seal portion 13 and the small container 15 will not be easily transmitted, and a large force will tend to be required to peel and open the weak seal portion 21 of the small container 15.

[0036] 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 can be appropriately set according to the material and thickness of the films 5a, 5b, similar to the depth D1 in Fig. 2. The unevenness may be formed by embossing.

[0037] The first hook portion L1 and the second hook portion R1 are preferably formed on the side of the storage portion 11 where the small container 15 is not disposed. As a result, when pressure is applied to a part of the storage portion 11 storing the content, drug b, for example, opening of a predetermined area of ​​the partition weak seal portion 13 where the first hook portion L1 and the second hook portion R1 are formed is delayed, and pressure and peeling forces F, F are more easily transmitted to the central area 13a of the partition weak seal portion 13 where the first hook portion L1 and the second hook portion R1 are not formed and the small container 15.

[0038] The shapes of the first hook portion L1 and the second hook portion R1 are not particularly limited, and may be, for example, a solid line, a dotted line, or a plane. For example, as shown in Fig. 1, when the first hook portion L1 and the second hook portion R1 are solid line shaped, the pressure and peeling force F, F on the partition weak seal portion 13 are easily concentrated in a specific area (for example, the central area 13a) of the partition weak seal portion 13, and this makes it easier to peel off the adhesive portion 19 and the weak seal portion 21 of the small container 15.

[0039] In this embodiment, it is preferable that the first hook portion L1 and the second hook portion R1 are symmetrical with respect to the central axis (axis α) that passes through the center of the container body 5 in the longitudinal direction. This makes it easier for the pressure and peeling forces F, F on the partitioning weak seal portion 13 and the small container 15 to be uniformly transmitted to a specific region of the partitioning weak seal portion 13 (for example, the central region 13a).

[0040] The distance between the end E1 of the first hook portion L1 (first hook body portion) and the end E2 of the second hook portion R1 (second hook body portion) at the center of the container body 5 is preferably shorter than the width of the small container 15 and longer than half the width. This makes it easier to transmit 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 (e.g., a part of the second storage section 11) to generate peeling forces F, F in the direction of the arrow 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 films 5a and 5b are hooked to each other at the projections and recesses 31, which are hook shapes formed in the first hook section L1 and the second hook section R1. As a result, opening is delayed in the area where the first hook section L1 and the second hook section R1 are formed, and pressure is concentrated in the area where the first hook section L1 and the second hook section R1 are not formed, making it easier to open the desired area (e.g., the center side) of the partition weak seal section 13. 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. Note that a part or the vicinity of the partition weak seal portion 13 where the first hook portion L1 and the second hook portion R1 are formed is later opened due to the outflow of the content (drug). This is preferable because it further promotes the mixing of the content in the multi-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 medical multi-chamber container of the second embodiment. As shown in FIG. 5, the first hook portion L2 has a first hook body portion l1 formed from one end side of the partition weak seal portion 13 to the center side of the container body 5, and a first hook extension portion l2 extending from the end of the first hook body portion l1 at the center side of the container body 5 to the small container 15 side. Similarly, the second hook portion R2 has a second hook body portion r1 formed from the other end side of the partition weak seal portion 13 to the center side of the container body 5, and a second hook extension portion r2 extending from the end of the second hook body portion r1 at the center side of the container body 5 to the small container 15 side. In this way, by having the first hook extension portion l2 and the second hook extension portion r2 extending from the ends of the first hook main body portion l1 and the second hook main body portion r1 toward the small container 15, pressure and peeling forces F, F are more easily transmitted to the central side (central region 13a) of the partition weak seal portion 13 and the small container 15, which is a preferred embodiment.

[0044] Third embodiment Fig. 6 is a plan view of the multi-chamber medical container of the third embodiment. As shown in Fig. 6, the first hook extension l3 of the first hook L3 extends further toward the small container 15 than the first hook extension l2 in Fig. 5. Similarly, the second hook extension r3 of the second hook R3 extends further toward the small container 15 than the second hook extension r2 in Fig. 5. This is a preferred embodiment because it makes it easier to transmit pressure and peeling forces F, F to the small container 15.

[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 11In this way, the first auxiliary hook portion L 11 , second auxiliary hook R 11 By arranging the first hook portion L2 and the second hook portion R2 apart from each other via the half-fold line 25, even if pressure is applied due to the weight of the stacked containers when the containers are folded in half at the half-fold 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 a medical container with multiple chambers according to 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 shape that combines a trapezoid and a rectangle. The first hook portion L3 and the second hook portion R3 are provided along the shape of the partition weak seal portion 13A, and the angle θ1 between the first hook main body portion 14 and the first hook extension portion 15 in the first hook portion L3 is preferably 90° to less than 180°, more preferably 110° to 150°, and even more preferably 120° to 140°. The angle θ2 in the second hook portion R3 is similar, and by the angle θ1 in the first hook portion L3 and the angle θ2 in the second hook portion R3 being in the above range, the pressure and peeling forces F, F are easily transmitted to the center side (center region 13a) of the partition weak seal portion 13 and the small container 15.

[0047] (Sixth to Ninth Embodiments) 9 to 12 are plan views of medical multi-chamber containers of the sixth to ninth embodiments. The first hook portion L4 and the second hook portion R4 of the sixth embodiment shown in FIG. 9 may be arc-shaped instead of linear. Also, as in the seventh embodiment shown in FIG. 10, a space may be formed between the first hook portion L5 and / or the second hook portion R5 and the partition weak seal portion 13. According to the seventh embodiment, it is preferable in that the area of ​​the partition 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, the end portions (E5, E6) of the first hook portion L6 and / or the second hook portion R6 may not be in contact with the peripheral portion 3 of the container body 5. As in the ninth embodiment shown in FIG. 12, the first hook portion L7 and / or the second hook portion R7 may be formed so as to overlap a part of the partition weak seal portion 13.

[0048] (Manufacturing method) The method for manufacturing a multi-chamber container of this embodiment includes the steps of forming a partitioning weak seal portion 13 to partition the container body 5 into multiple storage sections 9, 11, forming a first hook portion L1 at least partially from one end side of the partitioning weak seal portion 13 to the center or in the vicinity thereof, and forming a second hook portion R1 at least partially from the other end side of the partitioning weak seal portion 13 to the center or in the vicinity thereof. According to this manufacturing method, it is possible to manufacture a multi-chamber container 1 in which the multiple storage sections 9, 11 and small containers 15 are easily opened and the contents are easily mixed, 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.

[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, L1 to L7: First hook R, R1 to R7: Second hook E1 to E8: Ends of the first hook portion or the second hook portion α...axis

Claims

1. A container body having a plurality of storage sections; An outlet connected to the storage section; a partition weak seal portion that divides the container body into the plurality of storage portions and opens and communicates the plurality of storage portions with each other by increasing the pressure within the storage portions; A multi-chamber container comprising: a small container that is disposed in any one of the plurality of storage sections and that is opened together with the opening and closing of the partition weak seal section; a first hook portion formed at least in a portion or in the vicinity of one end side of the partition weak seal portion toward the center; A second hook portion is formed in at least a part or in the vicinity of the other end side of the partition weak seal portion toward the center, The multi-chamber container has the first hook portion and the second hook portion not in contact with each other.

2. 2. The multi-chamber container according to claim 1, wherein the first hook portion and the second hook portion are formed on a side of the storage portion where the small container is not disposed.

3. the first hook portion has a first hook body portion and a first hook extension portion extending from an end portion of the first hook body portion at a center side of the container body toward the small container side, 3. The multi-chamber container according to claim 1 or 2, wherein the second hook portion has a second hook main body portion and a second hook extension portion extending from an end portion of the second hook main body portion at the center side of the container body toward the small container side.

4. 4. The multi-chamber container according to claim 1, wherein the first hook portion and / or the second hook portion is formed in a solid line shape.

5. The multi-chamber container according to claim 3, wherein the angle between the first hook body portion and the first hook extension portion is 90° or more and less than 180°, and / or the angle between the second hook body portion and the second hook extension portion is 90° or more and less than 180°.

6. A multi-chamber container according to any one of claims 3 to 5, wherein the distance between the end of the first hook body portion and the end of the second hook body portion at the center of the container body is shorter than the width of the small container and longer than half of the width.

7. 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 projections and recesses formed by embossing.

8. The multi-chamber container according to any one of claims 1 to 7, wherein the first hook portion and the second hook portion are symmetrical to each other with respect to a central axis passing through the center of the container body in the longitudinal direction.

9. The multi-chamber container according to any one of claims 1 to 8, further comprising 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 arranged, in or near the partition weak seal portion and / or the small container.

10. 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 or food use.

11. A method for manufacturing a multi-chamber container, comprising: forming a partition weak seal portion so as to partition the container body into a plurality of storage portions; forming a first hook portion at least in a portion or in the vicinity of one end side of the partition weak seal portion toward the center; The method for manufacturing a multi-chamber container according to any one of claims 1 to 10, further comprising a step of forming a second hook portion in at least a portion or in the vicinity of the other end side of the partition weak seal portion toward the center.

12. In the step of forming the partition weak seal portion, the partition weak seal portion is formed by thermal fusion, The manufacturing method according to claim 11 , wherein the first hook portion and the second hook portion are formed by a mold that cools the heat-sealed partition weak seal portion when the partition weak seal portion is cooled.

Images