JP2004203488A - Infusion bag packing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an infusion bag packing method which is so excellent in shock resistance that an easily releasable partition section partitioning the interior of an infusion bag into two chambers, is prevented from ripping and connecting both the chambers to each other. <P>SOLUTION: According to the infusion bag 10 packing method, each of the infusion bags 10 consisting of the chambers 14, 16 and the easily releasable partition section 12 separating the chambers 14, 16 from each other is folded along the partition section 12, and the folded infusion bags 10 are sealed in respective sheathing bags 20 together with gas as packing bodies 22 such that the sum of volume of all the packing bodies 22 makes up 50% the capacity of a packing box 24 or more. Then the packing bodies 22 are piled up on each other in a staggered configuration and housed in the packing box 24, and further an uppermost one of the packing bodies 22 is brought into contact with an upper cover 26 of the packing box 24. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a packing method for accommodating an infusion bag in a packaging box, and in particular, an infusion in which a predetermined volume of gas is sealed together with the infusion bag in an outer bag, and a plurality of the gases are accommodated in the packaging box in a predetermined state. The present invention relates to a bag packing method.

  Conventionally, a two-chamber infusion bag has an easily peelable partition portion (weak seal portion), so that the partition portion is folded in the partition portion and put in an outer bag to prevent the partition portion from opening during transportation. It is customary to alternately stack, store, and pack this in a packaging box with this lying down. For example, FIG. 3 of Japanese Utility Model Laid-Open Publication No. 3-85038 (Patent Document 1) shows an outer bag (overlap) in a state in which an infusion bag is folded near an easily peelable partition (a weak adhesive portion 8 in a compartment). FIG. 3 of Japanese Utility Model Registration No. 2600011 (Patent Document 2) shows an example in which the infusion bag (medical bag 10) is stacked in a plurality of stages in the packaging box 16 and accommodated therein. 2 shows an example in which the bags 10 are alternately stacked in a plurality of stages.

However, in such a packing method, the folded fold may sometimes come off from the partition, so that the partition may be opened due to an impact during transportation and the infusion may be mixed. there were.
The inventor of the present application has found that, while continuing intensive research, it is possible to improve the impact resistance of an infusion bag by enclosing a gas more than usual in an outer bag and tightly packing it in a packaging box. The present invention has been made.
Japanese Utility Model Publication No. 3-85038 Utility model registration No. 2600011

The problem to be solved is that the easily peelable partition that partitions between the chambers of a plurality of multi-chamber infusion bags housed in the packaging box is opened due to impact during transportation and the infusion is mixed. It is a problem.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a packing method capable of improving the shock resistance of an infusion bag having two or more chambers.

The present invention made to achieve such an object is configured as follows.
A A packaging method for accommodating a plurality of infusion bags having at least two compartments partitioned by an easily peelable partition in a packaging box, wherein the infusion bag folded by the easily peelable partition is enclosed in an outer bag together with gas. The gas is sealed in the outer bag so that the sum of the volumes of all the packages, each of which is individually packaged and in which the infusion bag and the gas are sealed in the outer bag, is 50% or more of the volume of the packaging box. A method of packing an infusion bag in which bodies are stacked alternately and accommodated in a packaging box, and the uppermost package is in contact with the upper lid of the packaging box.
B. The method for packing an infusion bag according to item A, wherein gas is sealed in the outer bag so that the sum of the volumes of all the packages is 50 to 90% of the volume of the packaging box.
C. The method for packing an infusion bag according to item A or B, wherein the sum of the volumes of the gas sealed in all the packages is 25% or more of the volume other than the portion occupied by all the infusion bags in the packaging box. .
D The method for packing an infusion bag according to item C, wherein the sum of the volumes of the gas sealed in all the packages is 25 to 60% of the volume other than the portion occupied by all the infusion bags in the packaging box.
E The method for packing an infusion bag according to any one of Items A to D, wherein 2 to 7 packages are stacked.

Since the present invention is configured as described above, the following effects can be obtained.
The gas is sealed in the outer bag so that the sum of the volumes of all the packages in which the infusion bag is sealed together with the gas in the outer bag is 50% or more of the volume of the packing box, and the uppermost package is packed. Advantageous in that it is in contact with the upper lid of the box, so that the impact during transportation or the like is reduced, the impact resistance of the easily peelable partition portion of the infusion bag is improved, and the opening of the infusion bag between the two chambers can be prevented. There is.
In addition, if the sum of the volumes of all the packages is set to be 50 to 90% of the volume of the packaging box, the packaging operation can be suitably performed without the packaging of the packaging being too tight.
Furthermore, in addition to the above conditions, if the sum of the volumes of the gas sealed in all the packages is 25% or more of the volume other than the portion occupied by all the infusion bags in the packaging box, the impact resistance is further improved. Improves.
Further, if the sum of the volumes of the gas sealed in all the packages is set to 25% to 60% of the volume other than the portion occupied by the entire infusion bag in the packaging box, the gas portion (space) with respect to the infusion bag. Has an advantage that it can be suppressed that the packaging box becomes too large and the packaging box can be prevented from becoming large.

  The object of providing a packing method capable of improving the impact resistance of an infusion bag having two or more chambers has been realized without changing the strength and other structures of the infusion bag and the packaging box.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes an infusion bag, which is divided into a large chamber 14 and a small chamber 16 by an easily-separable partitioning section 12, and each contains a drug, a solution, and the like. In the transfusion bag 10, the periphery of the two superposed plastic films is welded, and the middle portion is welded with a predetermined width and a strength lower than the welding strength of the periphery, thereby forming the easily peelable partition portion 12. When the infusion bag 10 is packed, the infusion bag 10 is first folded at the easily peelable partition 12 as shown in FIG. 2 (a), and further housed in the outer bag 20 as shown in FIG. 2 (b). A predetermined amount of gas (air in this embodiment) is also enclosed and hermetically sealed. Reference numeral 22 denotes a package formed by enclosing a predetermined amount of gas and the infusion bag 10 in the outer bag 20, and is accommodated in a packaging box in a predetermined number of layers and packed. The predetermined amount of gas to be filled will be described later.

As shown in FIG. 3, the packing is performed by first placing the package 22 on the bottom of the packaging box 24, alternately stacking the required number of packages 22 thereon, and covering it with the upper lid 26.
The number of overlapping stages is preferably about 2 to 7 stages. FIG. 3 shows a state where the packaging bodies 22 are stacked in seven stages. The predetermined amount of gas sealed in each package 22 is such that the sum of the volumes of all packages 22 is equal to the volume of the package box when the top package 22 is covered so as to contact the upper lid 26. It is determined to be 50% or more. The case of FIG. 3 will be described as an example (it is assumed that one stacked in seven stages is accommodated in one row). Assuming that the volumes of the first to seventh (uppermost) packages 22 are V1, V2, V3, V4, V5, V6, and V7 and the volume of the packaging box 24 is V, as follows: Become.
V1 + V2 + V3 + V4 + V5 + V6 + V7.gtoreq.V.times.50% (however, the uppermost package 22 is stored in contact with the upper lid 24.)
In addition, even if the volume of each package 22 is the same, the lower one should be pressed by the weight of the upper package 22 and the volume should be smaller, but if the number of stacking stages is not so large, the influence of the pressing is not so large, It is considered that the volume of each package 22 may be substantially the same.

  According to the present embodiment, when a gas is sealed in the package 22 and the package is tightly packed so that the top package 22 is in contact with the upper lid, the package 22 is transported or other unexpected impact is applied. In this case, the impact is also reduced, and the opening of the large chamber 14 and the small chamber 16 due to the peeling of the easily peelable partition 12 of the infusion bag is prevented, and there is an advantage that the shock resistance is improved. In particular, when the bent portion is disengaged from the easily peelable partition, even if a slight impact is applied, the easily peelable partition is peeled off and both chambers are easily opened. The advantage of blocking is great. In the present embodiment, the sum of the volumes of all the packages 22 is 50% or more of the volume of the packaging box 24, but is preferably 50 to 90%. Although it is possible to make it 90% or more, there is a case where the rigidity becomes high and it becomes difficult to pack in a packaging box.

  In the above embodiment, the sum of the volumes of all the packages 22 is set to be 50% or more of the volume of the packaging box 24 or 50 to 90%, and the top package 22 is in contact with the upper lid. Furthermore, if the sum of the volumes of the gas sealed in all the packaging bodies 22 is set to be 25% or more of the remaining volume obtained by subtracting the sum of the volumes of all the infusion bags 10 from the volume of the packaging box 24, the resistance is improved. The impact properties are further improved. Preferably, it is 25 to 60% of the remaining volume. Although it can be 60% or more, the gas portion (space) becomes larger than the infusion bag, and the packaging box becomes large.

    Test Example 1 The transfusion bag 10 shown in FIG. 1 was 20 cm wide and 38 cm high, the seal width of the easily peelable partition 12 was 1.4 cm, the seal strength was 4 N / 15 mm, and the material was polyethylene (however, the inner layer was (Mixture of polyethylene and polypropylene), and the large chamber 14 and the small chamber 16 were filled with 700 mL and 300 mL of distilled water, respectively, and folded at a position 20 mm away from the easily peelable partition 12. The volume per infusion bag was 1255 mL. This bag is sealed in a polyvinyl alcohol multilayer outer bag (28.5 cm × 33 cm) together with nitrogen gas, and stored alternately in two rows and five steps in a cardboard box having a width of 39 cm, a depth of 33 cm, and a height of 24 cm. Closed. In each of the cardboard boxes of Examples 1 and 2 and Comparative Example 1, the package formed by enclosing the infusion bag together with the nitrogen gas in the outer bag was in close contact with the uppermost one and the upper lid of the box. In the case of Comparative Example 2, a box having a height of 26 cm was used, and a gap was provided between the uppermost package and the upper lid of the box.

After dropping the cardboard box containing the packed body from the height of 120 cm from the front, side and bottom directions, the peeling condition (peeling width) of the easily peelable partition 12 of the infusion bag inside was tested. . In each of the examples and the comparative examples, the test was performed using five cardboard boxes each containing 10 bags (= 2 rows × 5 steps), and a total of 50 bags each. Table 1 shows the results.
As can be seen from the above test results, in all of Examples 1 and 2, the peeling of the easily peelable partition portion 12 is all contained in less than half of the width of the partition portion 12, and there is no thing larger than half or opened. However, in Comparative Examples 1 and 2, there are many cases where the peeling width is more than half, and one case is found in each case where the opening is opened. Thus, according to the packing method of the present embodiment, it can be seen that the impact resistance of the infusion bag has been improved.

    Test Example 2 The infusion bag 10 shown in FIG. 1 was 20 cm wide and 38 cm high, the seal width of the easily peelable partition 12 was 1.4 cm, the seal strength was 4 N / 15 mm, and the material was polyethylene (however, the inner layer was (Mixture of polyethylene and polypropylene), and the large chamber 14 and the small chamber 16 were filled with 700 mL and 300 mL of distilled water, respectively, and folded at a position 20 mm away from the easily peelable partition 12. The volume per infusion bag was 1170 mL. This bag is enclosed in a polyvinyl alcohol multilayer outer bag (28.5 cm × 33 cm) together with nitrogen gas, and stowed alternately in two rows and five steps in a cardboard box having a width of 42 cm, a depth of 33 cm, and a height of 25 cm. Closed. In any of the cardboard boxes of Examples 3 and 4 and Comparative Example 3, the package formed by enclosing the infusion bag together with the nitrogen gas in the outer bag was in close contact with the uppermost one and the upper lid of the box. In the case of Comparative Example 4, a box having a height of 27 cm was used, and a gap was provided between the uppermost package and the upper lid of the box.

In the same manner as in Test Example 1, after the cardboard box containing and packed the package is dropped from a height of 120 cm from the front, side, and bottom in three directions, the easily peelable partitioning portion 12 of the infusion bag inside is dropped. Peeling condition (peeling width) was tested. In each of the examples and the comparative examples, the test was performed using five cardboard boxes each containing 10 bags (= 2 rows × 5 steps), and a total of 50 bags each. Table 2 shows the results.
As can be seen from the above test results, in all of Examples 3 and 4, the peeling of the easily peelable partition portion 12 is all contained in less than half of the width of the partition portion 12, and there is no thing larger than half or that which is opened. However, in the comparative examples, the peeling width was more than half, in Comparative Example 3, there were many, and in Comparative Example 4, three cases were seen, and there was no penetration. Thus, according to the packing method of the present embodiment, it can be seen that the impact resistance of the infusion bag has been improved.

In each of the above embodiments, nitrogen is used as the gas to be filled in the outer bag 20, but an inert gas such as carbon dioxide or argon or air may be used.
Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

  The present invention can be applied to a case where a multi-chamber container other than an infusion bag or a bag having one chamber is packed so as to enhance impact resistance during transportation or the like.

It is a front view which shows the infusion bag used for one Example of this invention. (A), (B) is an explanatory view showing the individual packaging state of the infusion bag. It is explanatory drawing which shows the implementation state of the example.

Explanation of reference numerals

10 Infusion bag
Reference Signs List 12 easily peelable partition 14 large chamber 16 small chamber 20 outer bag 22 package 24 packaging box 26 top lid

Claims (5)

A packaging method for accommodating a plurality of infusion bags having at least two chambers partitioned by an easily peelable partition in a packaging box, wherein the infusion bag folded by the easily peelable partition is enclosed in an outer bag together with a gas. The gas is sealed in the outer bag so that the sum of the volumes of all the packages in which the infusion bag and the gas are sealed in the outer bag is 50% or more of the volume of the packaging box. Are stacked alternately and accommodated in a packaging box, and the uppermost package is in contact with the top lid of the packaging box. 2. The method for packing an infusion bag according to claim 1, wherein gas is sealed in the outer bag so that the sum of the volumes of all the packages is 50 to 90% of the volume of the packaging box. 3. The packaging of the infusion bag according to claim 1, wherein the sum of the volumes of the gas sealed in all the packaging bodies is 25% or more of the volume other than the portion occupied by all the infusion bags in the packaging box. Method. 4. The method for packing an infusion bag according to claim 3, wherein the sum of the volumes of the gas sealed in all of the packages is 25 to 60% of the volume other than the portion occupied by all the infusion bags in the packaging box. The method for packing an infusion bag according to any one of claims 1 to 4, wherein two to seven packages are stacked.

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