JP6290604B2 - Multi-chamber container - Google Patents

Description

  The present invention relates to a multi-chamber container.

  Among drugs administered to patients by intravenous injection, there are unstable drugs that cause undesirable changes over time when pre-mixed. For example, when an amino acid infusion solution and a glucose infusion solution are blended and stored, the mixed solution browns by a so-called Maillard reaction. In addition, if fat emulsion and electrolyte solution are blended and stored, the fat will aggregate, and if phosphoric acid-containing liquid and calcium-containing liquid are blended, calcium phosphate will precipitate and undesirable changes will occur. Wake up.

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

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

  8 to 10 are explanatory views showing an example of such a conventional multi-chamber container for medical use, FIG. 8 is a plan view, FIG. 9 is a cross-sectional view taken along line XX in FIG. 8, and FIG. FIG.

  As shown in FIG. 8, the multi-chamber container 1 partitions the inside of the container body 5 formed in a rectangular shape by bonding the peripheral edge portion 3 into a first storage portion 9 and a second storage portion 11 by a partition portion 13. At the same time, each of the storage units 9 and 11 stores various drugs a and b that are not desirable if they are mixed or dissolved in advance, and each of the storage units 9 and 11 (the first storage unit 9 in FIG. 8). ), A small container 15 is provided, and the medicine c is stored in the small container 15. The small container 15 is provided with an adhesive portion 21 on the inner surfaces of the films 15a and 15b of the small container 15 inside the films 5a and 5b constituting the container main body 5 as shown in an enlarged cross section in FIG. As shown in FIG. 10, force is applied from the outside of the container body 5 to apply pressure to the partition part 13 to give peeling forces F and F, thereby opening the first storage part 9 and the second storage part 11, and When a and b are mixed, the adhesive portion 21 of the small container 15 is also peeled off at the same time, and the drug c in the small container 15 is mixed with the drugs a and b of the storage portions 9 and 11 ( For example, see Patent Document 2).

  However, for example, when the external force to the multi-chamber container is not sufficiently strong, or the position where the force is applied is not appropriate, the pressure on the partition 13 and the peeling forces F and F are insufficient. The adhesive part 21 of the container 15 does not peel off, and the medicine c in the small container 15 may not be mixed with the medicines a and b of the storage parts 9 and 11.

  In order to solve the above-mentioned problems, the present invention provides a multi-chamber container in which a small container is housed in a container body, where the external force to the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate. Even if it exists, it aims at providing the multi-chamber container in which the storage part and small container by the side of a container main body are easy to open.

As a result of intensive studies on the structure of the multi-chamber container, the present inventors have provided a multi-chamber container capable of solving the above-described problems by providing two middle seal portions having a specific shape in at least a part of the weak seal portion for partitioning. I found.
That is, the present invention includes a container body having a plurality of storage parts and a discharge port connected to the storage part. The container body is divided into a plurality of storage parts and is opened by increasing the pressure in the storage part. A multi-chamber container provided with a partition weak seal portion to be communicated, and a small container to be opened together with opening of the partition weak seal portion in one of the storage portions, and one end of the partition weak seal portion A first medium seal portion having a shape inclined toward the small container from the side to the center side, and a second medium having a shape inclined toward the small container from the other end side to the center side of the weak seal portion for partitioning The first middle seal portion and the second middle seal portion do not cross each other, and the first weak seal portion extending from one end to the other end has a first side Middle seal part and second middle seal part And spacing are provided, the seal portion in the seal portion and the second in the first, the seal strength than the partitioning weak seal portion is rather high, and the center side front end portion of the first inside seal portion, An interval between the second middle seal portion and the front end portion on the center side is shorter than a lateral width of the small container, and at least a part of the weak seal portion for partition includes the first middle seal portion and the second middle seal portion. A shape that narrows in a trapezoidal shape from the side away from the small container to the small container side is formed between the seal portion and the seal portion .

  According to the multi-chamber container of the present invention, at least a part of the weak seal portion for partition has a slanted shape that has a higher sealing strength and can easily transmit pressure and / or peeling force to the small container side. A seal portion and a second middle seal portion are provided. As a result, even when the external force is not strong or the position where the force is applied is deviated from an appropriate part, the pressure and the peeling forces F and F to the weak seal part for partitioning are easily transmitted. Also, the adhesive part and the weak seal part of the small container are easily peeled off, and the contents in the small container are easily mixed with the contents in each storage part.

  In the multi-chamber container of the present invention, the shape of the first middle seal portion and the shape of the second middle seal portion may be symmetrical to each other. If the shape of the first middle seal portion and the shape of the second middle seal portion are symmetrical to each other, the pressure and the peeling forces F and F to the weak seal portion for partition and the small container are easily transmitted uniformly.

  Moreover, the multi-chamber container of this invention WHEREIN: The center side front-end | tip part of a 1st middle seal part and a 2nd middle seal part may have an angle of 10 degrees or more and less than 90 degrees. If the angle of the center side tip of the first middle seal part and the second middle seal part is in the range of 10 ° or more and less than 90 °, the pressure and peeling force F, F to the weak seal part for partition and the small container Is easier to communicate.

It is preferable that the distance between the center-side tip portion of the first middle seal portion and the center-side tip portion of the second middle seal portion is longer than one half of the lateral width of the small container. Thereby, the pressure and peeling force F, F to a small container become easy to be transmitted.

  In the multi-chamber container of the present invention, the maximum point load may be 250 N or more and 1800 N or less. When the maximum point load is within the above range, a multi-chamber container having both ease of opening and sealing during transportation or the like is obtained.

  Moreover, the opening strength of the weak seal part for a partition may be 2.5 N / 15 mm or more and 4.5 N / 15 mm or less. When the opening strength of the weak seal portion for partitioning is within this range, a multi-chamber container having both ease of opening and sealing at the time of transportation or the like is obtained.

  The multi-chamber container of the present invention is preferably for medical use or food. Such a multi-chamber container having both ease of opening and sealing during transportation can be used as a medical multi-chamber container, and can also be used for food.

  According to the present invention, in a multi-chamber container in which a small container is housed in a container body, even if the external force to the multi-chamber container is not sufficiently strong or the position where the force is applied is not appropriate, the container It is possible to provide a multi-chamber container in which the storage unit and the small container on the main body side can be easily opened.

It is a top view of the medical multiple-chamber container which is one Embodiment of this invention. FIG. 2 is a partial enlarged cross-sectional view taken along line AA in FIG. 1. It is an expanded sectional view which shows the peeling open state of the medical multiple-chamber container which is one Embodiment of this invention. It is a top view of the medical multiple-chamber container which is a modification of this embodiment. It is a top view of the medical multiple-chamber container which is a modification of this embodiment. It is a top view of the medical multiple-chamber container which is a modification of this embodiment. It is a top view of the medical multiple-chamber container which is a modification of this embodiment. It is a top view of the conventional multi-chamber container. FIG. 9 is a partial enlarged cross-sectional view taken along line XX in FIG. 8. It is sectional drawing which shows the peeling open state of the multi-chamber container shown in FIG.

Hereinafter, embodiments of a multi-chamber container according to the present invention will be described with reference to the drawings.
The multi-chamber container of the present embodiment includes a container main body having a plurality of storage units and a discharge port connected to the storage unit, and partitions the container main body into a plurality of storage units and increases the pressure in the storage unit. A multi-chamber container provided with a partition weak seal portion that is opened and communicated with each other, and a small container that is opened together with opening communication of the partition weak seal portion in any of the storage portions, A first middle seal portion having a shape inclined to the small container side from one end side to the central side, and a first shape having a shape inclined to the small container side from the other end side to the central side of the weak seal portion for partitioning. 2, a multi-chamber container in which the first middle seal portion and the second middle seal portion do not cross each other.

  FIG. 1 is a plan view illustrating an example of a medical multi-chamber container in a multi-chamber container according to an embodiment of the present invention, and FIG. 2 is a partial enlarged cross-sectional view taken along line AA of FIG.

  As shown in FIG. 1, a medical multi-chamber container 1 has a container body 5 that is formed in a rectangular shape with a peripheral edge 3 bonded thereto, a rubber plug connected to the container body 5, and discharges a medicine. The medicine discharge port 7 is provided. The container body 3 has a first storage portion 9 and a second storage portion 11 arranged side by side in the longitudinal direction, and the two storage portions 9 and 11 are partitioned by a detachable partition weak seal portion 13. Yes. In addition, the first storage unit 9 and the second storage unit 11 store various kinds of drugs a and b that are undesirable when mixed or dissolved in advance as contents.

  The medical multi-chamber container 1 can be a bag-like container formed by thermally bonding or adhering the peripheral portions of two single-layer or multi-layer films. As a material constituting the container body 5 of the medical multi-chamber container 1, films made of various resins such as thermoplastic resins such as polyethylene, polypropylene, and polystyrene can be employed.

  In order to adjust the pressure required to peel off the partition weak seal portion 13, for example, when a film made of a thermoplastic resin is melt-bonded, the heating adhesion time of the partition weak seal portion 13 is set to the container body 5. What is necessary is just to make it shorter than the heat-bonding time of the peripheral part 3. Alternatively, the adhesive strength can be adjusted by applying the adhesive pressure of the partition weak seal portion 13 with an adhesive pressure lower than the adhesive pressure of the peripheral edge portion 3 of the container body 5.

  A small container 15 for storing the medicine c is provided in the first storage part 9 of the medical multi-chamber container 1, and a seal part of the small container 15 is a weak seal part 21.

  The adhesion part 19 with respect to the container main body 5 of the small container 15 may be formed in the extension parts 23a and 23b of the outer part from the weak seal part 21 of the films 15a and 15b which comprise the small container 15 as shown in the figure. Further, the extending portions 23a and 23b may be bonded in a linear shape extending substantially over the entire length in the length direction. As this adhesion means, for example, means such as heat fusion is suitably used.

  It should be noted that the width B (see FIG. 2) of the extending portions 23a and 23b is not particularly limited as long as the small container 15 is sufficiently wide to adhere to the films 5a and 5b constituting the container body 5. Is 3 to 20 mm, more preferably 5 to 15 mm. 1 may be the same width as that of the weak seal portion 21.

  The small container 15 is a film having a three-layer structure in which an inner layer is made of polyethylene, an intermediate layer is made of polycyclic olefin, and an outer layer is made of polyethylene. Films 15a and 15b having a structure in which each layer is easily peeled are preferably used. A bag-like container is formed by thermally bonding the periphery of the two combined films 15a and 15b. In addition, adjustment of the pressure required to peel the weak seal portion 21 of the small container 15 is performed by heating and bonding the weak seal portion 21 as in the case of the seal between the partition weak seal portion 13 and the peripheral edge portion 3 of the container body 5. What is necessary is just to make time shorter than the heat-bonding time of the other peripheral part of the small container 15. FIG. Or what is necessary is just to adjust by performing the adhesive pressure of the weak seal part 21 with the adhesive pressure lower than the adhesive pressure of the peripheral part of the small container 15. FIG.

  2 is a partial enlarged cross-sectional view taken along line AA in FIG. FIG. 3 is an enlarged cross-sectional view showing a peel-open state of the medical multi-chamber container 1 which is an embodiment of the present invention. When the medical multi-chamber container 1 is used, a force is applied to the container body 5 (for example, a part of the second storage portion 11) to generate forces in the directions of arrows F and F as shown in FIG. The seal part 13 is peeled off, and the first storage part 9 and the second storage part 11 are opened. Further, as shown in FIG. 3, the opening of the small container 15 is pulled from the extending portions 23a and 23b to the films 5a and 5b of the container body 5, and the peeling force is transmitted to the weak seal portion 21 as shown in FIG. The weak seal portion 21 is peeled open, and the internal medicine c flows out.

  At this time, since the bonding portion 19 is located at a position other than the weak seal portion 21, for example, in the case of fusion bonding by heat, the easy peelability of the weak seal portion 21 is not affected by heat and is shown in FIG. Thus, it is possible to reliably open the package. Moreover, since the adhesion part 19 is made the exterior of the small container 15, the internal chemical | medical agent c is not influenced by the heat | fever at the time of fusion | melting adhesion | attachment, The quality of the internal chemical | medical agent c can be maintained favorable.

In multi-chamber medical container 1 of this embodiment, the first seal portion L ₁ in the are formed with a shape inclined toward the center side in the small container 15 side from the one end side of the partitioning weak seal portion 13 Yes. The seal portion R ₁ in the second having a shape inclined in the small container 15 side toward the center side from the other end side of the partitioning weak seal portion 13 is formed. Also, do not intersect each other and the sealing portion R ₁ in the seal portion L ₁ and the second within the first. The first shape of the seal portion R ₁ in the seal portion L ₁ and the second inside has a shape inclined toward the center side in the small container 15 side from the one end side of the partitioning weak seal portion 13, disjoint Otherwise, the shape is not particularly limited. For example, as shown in FIG. 1, the first middle seal portion L ₁ may have a triangular shape with three sides of p ₁ , q ₁ , and r _1. The second middle seal portion R ₁ may also have a triangular shape like the first middle seal portion L ₁ . In the first inside seal portion L ₁ of FIG. 1 shows a slope in shape sides q ₁ is inclined. Incidentally, sloped shapes are not intended to be limited only linearly like sides q ₁ in FIG. 1, may be, for example, arcuate.
In this manner, by the first seal portion R ₁ in the seal portion L ₁ and the second in the is formed, partitioning weak seal portion 13, over the second housing portion 11 side to the small container 15 side The shape narrows to a trapezoidal shape. Accordingly, for example, when a load is applied to a part of the second storage part 11, the pressure and the peeling forces F and F are easily transmitted from the second storage part 11 side to the partition weak seal part 13 and the small container 15 side. The adhesion part 19 and the weak seal part 21 of the container 15 become easy to peel. As a result, the medicine c in the small container 15 is easily mixed with the medicines a and b in the storage units 9 and 11. In the present embodiment, the middle seal portion means a seal portion having higher seal strength than the weak seal portion.

In multi-chamber medical container 1 of this embodiment, it is preferable first in the shape of the seal portion L ₁ and the second shape of the seal portion R ₁ in the may be asymmetric, but symmetrical to each other . If the first in the seal portion L ₁ of the shape and the second is symmetrical and the shape of the sealing portion R ₁ in the pressure and release force F to the partitioning weak seal portion 13 and the small container 15, F is, easily transmitted uniformly from the inclined shape of the sealed portion R ₁ in the shape and the second inclined in the sealing unit L ₁ in the first.

Further, in the multi-chamber medical container 1 of the present embodiment, first in the center side front end portion Y of the seal portion R ₁ in the center side front end portion X and the second sealing portion L ₁ is, 10 ° or 90 ° It may have an angle of less than. If the angle range of less than 10 ° or 90 ° of the first in the center side front end portion Y of the center-side tip portion X and the second in the sealing portion R ₁ of the seal portion L _1, partitioning weak seal portion 13 And the pressure and peeling force F, F to the small container 15 are more easily transmitted.

Center side front end portion X and the second center-side tip portion Y of the seal portion R ₁ in the sealing portion L ₁ first in is more preferably in the range of 10 to 80 °, more preferably in the range of 50 to 80 ° A range of 60 to 70 ° is particularly preferable.

A center side front end portion X of the seal portion L ₁ in the first interval of the second central side tip Y of the seal portion R ₁ in the shorter is favored over the width of the small container 15, the small container 15 It is preferable that it is longer than one half of the lateral width. Thereby, the pressure and peeling force F, F to the small container 15 are easily transmitted.

Further, the center side front end portion X of the first inside seal portion L _1, the central portion of the distance between the second center-side tip portion Y of the seal portion R ₁ in the the center of the width of the partitioning weak seal portion 13 It is preferable that the portion coincides with a vertical line with respect to the lateral width. Particularly preferably, the center point of the interval is a shape that coincides with the center point of the lateral width of the partition weak seal portion 13.

  In the medical multi-chamber container 1 of the present embodiment, it is preferable that the maximum point load when performing an operation of increasing the pressure in the storage unit (second storage unit 11) is 250 N or more and 1800 N or less. If the range of the maximum point load is within the above range, the medical staff can sufficiently open the partition weak seal portion 13 and the small container 15 of the medical multi-chamber container 1 with an appropriate force. The maximum point load (maximum point load value) is the maximum value of the load value when an operation of gradually applying force to the second storage portion 11 of the medical multi-chamber container 1 is performed. This value rises for a certain period of time when a force is applied, peaks immediately before opening of the weak seal portion 13 for partitioning or the adhesive portion 19 and the weak seal portion 21 of the small container 15, and drops sharply after opening. When the maximum point load value is designed to be lower than 250N, for example, the weak seal portion 13 for partitioning or the adhesive portion 19 and the weak seal portion 21 of the small container 15 may be unintentionally opened during transportation, There is a risk of opening it unintentionally. Moreover, when it is designed to be higher than 1800 N, it is difficult to increase the pressure in the storage portion necessary for opening the weak seal portion 13 for partitioning or the adhesive portion 19 and the weak seal portion 21 of the small container 15. There is a fear. More preferably, the maximum point load is 300N or more and 1800N or less, and further preferably, the maximum point load is 350N or more and 1600N or less.

Further, the opening strength (N / 15 mm) of the partition weak seal portion 13 is a force necessary to peel off the partition weak seal portion 13 cut to a width of 15 mm, and the first intermediate seal portion L ₁ and the second seal seal portion L 2. lower than opening strength of the seal portion _{R 1} in the, opening strength may be 2.5 N / 15 mm or more 4.5 N / 15 mm or less. If the opening strength is lower than 2.5 N / 15 mm, the partition weak seal portion 13 may be unintentionally opened during transportation, for example. If the opening strength is higher than 4.5 N / 15 mm, the partition weak seal portion 13 may be opened. Alternatively, it may be difficult to increase the pressure in the storage portion necessary for opening the bonding portion 19 and the weak seal portion 21 of the small container 15.

FIG. 4 is a plan view of a medical multi-chamber container that is a modification of the present embodiment. As shown in FIG. 4, the center side front end portion of the first inside seal portion L ₂ and the second in the sealing portion R ₂ is, X in Figure 1, rather than at an acute angle as in the Y, first in the seal portion L ₂ or the second sealing portion R ₂ is in a trapezoidal shape, the center side front end portion may be a side as S _2. Here, as shown in FIG. 4, when the center side tip portion forms a side instead of an acute angle, for example, in the first middle seal portion L ₂ , 90 ° of a right angle from the angle between the side S ₂ and the side q _2. By reducing the angle, a preferable angle may be obtained as in the embodiment of FIG.

FIG. 5 is a plan view of a medical multi-chamber container that is a modification of the present embodiment. As shown in FIG. 5, the shape of the first middle seal portion L ₃ or the second middle seal portion R ₃ may protrude from the partition weak seal portion 13. 2 A part of the first middle seal portion L ₃ or the second middle seal portion R ₃ may overlap a part of the storage portion 11. Further, the shape of the first middle seal portion L ₃ or the second middle seal portion R ₃ is not a triangle as in the embodiment of FIG. 1, but may be, for example, a triangle or a shape in which a trapezoid and a rectangle are combined. Good. By forming the first middle seal portion L ₃ and the second middle seal portion R ₃ , the partition weak seal portion 13 narrows in a trapezoidal shape from the second storage portion 11 side to the small container 15 side. The shape should just be formed in a part of weak partition part 13 for partitions at least.

6 and 7 are plan views of a medical multi-chamber container which is a modification of the present embodiment. As shown in FIGS. 6 and 7, the shape of the first middle seal portion L ₄ or the second middle seal portion R ₄ (first middle seal portion L ₅ or second middle seal portion R ₅ ) is: Compared with the mode of FIG. 1, FIG. 4, and FIG. 5, it may protrude beyond the partition weak seal portion 13, and the second peripheral portion 3 of the container body 5 and a part of the second storage portion 11 may be The first middle seal portion L ₄ or the second middle seal portion R ₄ (the first middle seal portion L ₅ or the second middle seal portion R ₅ ) is within a range in which the content of the storage portion 11 is not greatly reduced. Some may overlap. Further, the shape of the first middle seal portion L ₄ or the second middle seal portion R ₄ (the first middle seal portion L ₅ or the second middle seal portion R ₅ ) is the same as in the embodiment of FIG. The shape may not be a triangle, for example, a triangle or a shape in which a trapezoid and a rectangle are combined.

  The medical multi-chamber container 1 of the present embodiment can be manufactured in the same manner as a known medical multi-chamber container. For the first middle seal portion L or the second middle seal portion R, for example, for partitioning After forming the weak seal part 13, it can form by thermally bonding the part which wants to form the 1st middle seal part L or the 2nd middle seal part R at higher temperature. In addition, after forming the partition weak seal portion 13, the concave and convex mold is provided with irregularities like the shape of the first intermediate seal portion L or the second intermediate seal portion R, and the opening is performed by being caught at the time of opening. It is also possible to delay. In addition, the catch of the unevenness | corrugation can also be opened completely, for example by mixing the 1st accommodating part 9 and the 2nd accommodating part 11 largely with a vibration.

  Further, in the medical multi-chamber container 1 of the present embodiment, for example, a load is applied to a part of the second storage portion 11, and the pressure and peeling force F, F are applied from the second storage portion 11 side to the partition weak seal portion 13 and By transmitting to the small container 15 side, the first storage part 9 and the second storage part 11 and the small container 15 are opened, and further, a part of the first storage part 9 is loaded, whereby the partition weak seal part 13, The first middle seal portion L and the second middle seal portion R can be completely peeled off. Thereby, it is also possible to adjust the internal volume in the second storage portion 11 after opening so that it does not decrease compared to the conventional case.

  In the above-described embodiment, the embodiment of the medical multi-chamber container is described as an example. However, the present embodiment is not limited to medical use, and may be, for example, a food multi-chamber container. Good. In the case of a multi-chamber container for food, for example, the content is a fluid food, and the discharge port is a food discharge port for discharging food out of the container.

  Examples of the present invention will be described below. In addition, this invention is not limited to a following example.

  In this example, the first and second middle seal portions were provided in the partition weak seal portion of the medical multi-chamber container, and the maximum point load value was measured when the pressure in the storage portion was increased.

  The maximum point load values of the medical multi-chamber containers of Examples 1 to 3 were measured with Tensilon (product name, manufactured by A & D) using a hand-type pressing plate (170 mm × 100 mm).

Example 1
Erneopa No. 2 (product name, manufactured by Otsuka Pharmaceutical Factory, Ltd., capacity 1500 ml) was used as a medical multi-chamber container. Moreover, the shape of the 1st and 2nd middle seal | sticker part was made into the shape similar to the shape shown in FIG. The opening strength of the partition weak seal portion 13 is 3.5 N / 15 mm, and the opening strength of the first middle seal portion L ₃ and the second middle seal portion R _{3 is based on} the opening strength of the partition weak seal portion 13. After forming the partition weak seal portion 13 so as to be larger, the sealing was performed again with the shapes of the first middle seal portion L ₃ and the second middle seal portion R ₃ . Table 1 shows the maximum point load when the opening operation is performed by applying a force to the second storage portion 11 of the container.

(Example 2)
Erneopa No. 2 (product name, manufactured by Otsuka Pharmaceutical Factory, Ltd., capacity 1500 ml) was used as a medical multi-chamber container. Moreover, the shape of the 1st and 2nd middle seal | sticker part was made into the shape similar to the shape shown in FIG. The opening strength of the partition weak seal portion 13 is 3.5 N / 15 mm, and the opening strength of the first middle seal portion L ₄ and the second middle seal portion R _{4 is based on} the opening strength of the partition weak seal portion 13. After forming the partition weak seal portion 13 so as to be larger, the sealing operation was performed again with the shapes of the first middle seal portion L ₄ and the second middle seal portion R ₄ . Table 1 shows the maximum point load when the opening operation is performed by applying a force to the second storage portion 11 of the container.

(Example 3)
Erneopa No. 2 (product name, manufactured by Otsuka Pharmaceutical Factory, Ltd., capacity 1500 ml) was used as a medical multi-chamber container. Moreover, the shape of the 1st and 2nd middle seal | sticker part was made into the shape similar to the shape shown in FIG. The opening strength of the partition weak seal portion 13 is 3.5 N / 15 mm, and the opening strength of the first middle seal portion L ₅ and the second middle seal portion R _{5 is based on} the opening strength of the partition weak seal portion 13. After forming the partition weak seal portion 13 so as to be larger, the sealing operation was performed again with the shapes of the first middle seal portion L ₅ and the second middle seal portion R ₅ . Table 1 shows the maximum point load when the opening operation is performed by applying a force to the second storage portion 11 of the container.

  Table 1 below shows the measurement results of the angle and interval of the middle seal portion of Examples 1 to 3 and the maximum point load when opened.

DESCRIPTION OF SYMBOLS 1 ... Medical multi-chamber container 3 ... Peripheral part 5 ... Container main body 5a, 5b ... Film which comprises a container main body 7 ... Discharge port 9 ... 1st accommodating part 11 ... -2nd accommodating part 13 ... Partition part 15 ... Small container 15a, 15b ... Film 17 which comprises a small container ... Hanging hole 19 ... Adhesion part 21 ... Weak seal part 23a , 23b... Extension part L, L _{1 to} L ₅ ... First middle seal part R, R _{1 to} R ₅ ... Second middle seal part p1 to p4, q1 to q4, r1 to r4. ..Each side X, Y of the first middle seal portion L: the front end on the center side of the first middle seal portion and the second middle seal portion

Claims (7)

A container main body having a plurality of storage portions; and a discharge port connected to the storage portion. The container main body is divided into the plurality of storage portions and is opened and communicated with each other by increasing the pressure in the storage portion. And a multi-chamber container provided with a small container to be opened together with opening communication of the partition weak seal part in any of the storage parts,
The first middle seal portion having a shape inclined toward the small container side from one end side of the partition weak seal portion toward the center side, and the other end side of the partition weak seal portion from the center side toward the center side. A second middle seal portion having a shape inclined to the small container side,
The first middle seal portion and the second middle seal portion do not cross each other, and the first weak seal portion extending from the one end to the other end has the first side on the central side. A space between the middle seal portion and the second middle seal portion is provided;
Said first inside seal portion and the second inside seal portion, the seal strength than the partitioning weak seal portion is rather high,
An interval between the center-side tip portion of the first middle seal portion and the center-side tip portion of the second middle seal portion is shorter than a lateral width of the small container,
At least a part of the partition weak seal portion has a trapezoidal shape from the side away from the small container to the small container side between the first medium seal portion and the second medium seal portion. A multi-chamber container, characterized in that a shape narrowing is formed .   The multi-chamber container according to claim 1, wherein the shape of the first middle seal portion and the shape of the second middle seal portion are symmetrical to each other.   The multi-chamber container according to claim 1 or 2, wherein the center-side front end portions of the first middle seal portion and the second middle seal portion have an angle of 10 ° or more and less than 90 °. Wherein the first in the center side front end portion of the seal portion, a distance between the center side front end portion of the second inside seal portion is longer than half the width of the front Symbol small container, claim 3. A multi-chamber container according to 3.   The multi-chamber container according to any one of claims 1 to 4, wherein the maximum point load is 250N or more and 1800N or less.   The multi-chamber container as described in any one of Claims 1-5 whose opening strength of the said weak seal part for partitions is 2.5 N / 15mm or more and 4.5 N / 15mm or less.   The multi-chamber container according to any one of claims 1 to 6, wherein the multi-chamber container is a medical or food multi-chamber container.

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