JP7555162B2 - Chemical container - Google Patents

Description

The present invention relates to a medicinal liquid container and an infusion bag.

Traditionally, infusions have been widely used for the purposes of replenishing water and electrolytes, replenishing nutrients, maintaining blood vessels, and treating illnesses. Infusions are stored in infusion bags, but the drugs contained in infusions can contain unstable drugs that are prone to change over time if mixed in advance. One example of such changes over time is the Maillard reaction, in which amino acids react with glucose and turn brown.

To prevent the above-mentioned changes over time from occurring before the infusion is used, a medical composite container is known that contains drugs that are likely to change over time if mixed in advance in separate storage chambers, as shown in Patent Document 1, for example. Such a medical composite container has two or more storage chambers, and the storage chambers are separated from each other by weak seals. The weak seals can be easily peeled off by applying pressure to the storage chambers containing the infusions, so that the infusions in each storage chamber can be mixed by peeling off the weak seals just before use. The medical composite container of Patent Document 1 is provided with a hanging hole for hanging the container body, and after mixing the infusions in each storage chamber, the medical composite container is hung from a hook or the like for use.

Utility Model Registration No. 3074885

Here, in Patent Document 1, when using the above-mentioned medical composite container, a tearable opening confirmation seal is attached to cover the hanging hole so that the user does not forget to peel off the weak seal portion (i.e., mix the infusions in each storage chamber) before administering the infusion, and the opening confirmation seal has a message encouraging the user to mix the medicines. As a result, the hanging hole cannot be used unless the opening confirmation seal is peeled off, and even if the user forgets to mix the infusions in each storage chamber, the user can be alerted when hanging the medical composite container from a hook or the like.

The medical composite container in Patent Document 1 is effective in calling the user's attention, but there is room for improvement to make the attention more sufficient.

The present invention was made in consideration of the above circumstances, and aims to provide a medicinal liquid container that can adequately alert the user to the need to mix the medicinal liquids in the respective storage chambers before administering the medicinal liquid, such as an infusion.

The liquid medicine container of the present invention is a liquid medicine container comprising at least two storage chambers for storing liquid medicine, a weak seal portion that separates the storage chambers and can be peeled off by applying pressure from the outside to the storage chambers, a flap portion that is provided with a hanging hole and is folded toward the storage chambers, and a seal portion that fixes the flap portion to the storage chamber in a state where it is folded toward the storage chamber and covers the hanging hole, and the seal portion has an opening portion that covers at least a portion of the hanging hole and is configured so that the hanging hole can be opened without being separated from the seal portion when the liquid medicine container is in use.

In the liquid medicine container of the present invention, simply flipping over the opening in the seal portion still fixes the flap portion onto the second storage chamber, and the liquid medicine container cannot be hung using the hanging hole. Therefore, even if the opening is opened before the liquid medicines are mixed due to contact with a medical instrument or omission, the user can realize that the liquid medicines have not been mixed before using the hanging hole. Therefore, according to the present invention, the user can be sufficiently alerted to the need to mix the liquid medicines in the storage chambers before administering the liquid medicines, such as an infusion.

It is preferable that the seal portion is treated to make it easy to tear along at least a portion of the edge of the flap portion. In this case, the seal portion can be easily torn along the easy-to-tear treatment, so that the fixation of the flap portion can be easily released.

It is preferable that the sealing portion covers the periphery of the flap portion above the storage chamber. In this case, it is possible to more effectively prevent the sealing portion from tearing due to contact with other medical instruments or omission.

It is preferable that the flap portion has a shape in which its width decreases in the direction away from the storage chamber. In this case, when pressure is applied to the storage chamber to peel off the weak seal portion, the tip of the flap portion is easily subjected to expansion pressure from the storage chamber, making it easier to release the fixation by the seal portion.

It is preferable that the opening only covers a portion of the hanging hole.

It is preferable that the sealing portion has at least two intersecting cut lines or lines that have been treated to make the opening easier to open at the opening. In this case, it becomes easier to open the opening.

It is preferable that the flap portion protrudes from the side of the container body, and that the width of the flap portion is smaller than the width of the storage chamber closest to the flap portion. In this case, when pressure is applied to the storage chamber to peel off the weak seal portion, the entire flap portion is more likely to be subjected to expansion pressure from the storage chamber, making it easier to release the fixation by the seal portion.

The seal portion is subjected to an easy-to-open treatment including a cutting line penetrating the seal portion in the thickness direction along at least a part of the edge extending in a predetermined direction of the flap portion, and the seal portion can be cut at the cutting line as a boundary into an edge portion joined to the storage chamber and a cover portion covering the hanging hole, and it is preferable that the cutting line includes a plurality of portions extending in a cross direction crossing a predetermined direction, so that the cover portion has one or more protruding pieces protruding in the cross direction. In this case, one or more protruding pieces of the cover portion fit into one or more corresponding concave portions of the edge portion, but at the same time that the cover portion is cut off from the edge portion along the cutting line, the protruding pieces are released from the concave portions. Cutting along the cutting line does not require a large external force, and the cover portion can be easily separated by hand, for example, by placing a hand on the tearing portion (i.e., the seal portion can be torn to release the fixation). Even if a part of the cover portion is accidentally cut off along the cutting line due to the dropping of the drug solution container, the protruding pieces can again fit into or get caught in the concave portions. This gives the effect of making the cover appear as if it is not separated.

It is preferable that the cover portion has a plurality of protrusions formed to be aligned in a predetermined direction. In this case, the plurality of protrusions of the cover portion fit into a corresponding plurality of recesses of the edge portion. Over a predetermined length of the edge of the flap portion, the effect of being able to easily separate the cover portion, or the effect of making it appear as if the cover portion has not been separated, as described above, can be achieved.

The infusion bag of the present invention comprises a container body having at least two storage chambers for storing medicinal liquids and a weak seal portion that separates the storage chambers and can be peeled off by applying pressure from the outside to the storage chambers, and a flap portion that is provided with a hanging hole and protrudes from the container body, the flap portion protruding from an edge of the container body of the infusion bag, and the width of the flap portion is smaller than the width of the storage chamber closest to the flap portion. When such an infusion bag is used as a medicinal liquid container fixed onto a storage chamber with the flap portion folded toward the storage chamber by the seal portion, for example, the fixation by the seal portion can be easily released when in use.

The present invention provides a medicinal liquid container that can adequately alert the user to the need to mix the medicinal liquids in the respective storage chambers before administering the medicinal liquids, such as an infusion.

FIG. 2 is a top view of a drug solution container according to an embodiment of the present invention. 1 is a top view of an infusion bag according to one embodiment of the present invention. FIG. 1A to 1C are top views showing various specific examples of a seal portion according to an embodiment of the present invention. FIG. 11 is a top view of an infusion bag according to another embodiment of the present invention. FIG. 11 is a top view of a drug solution container according to another embodiment of the present invention. FIG. 6(a) is a top view showing the vicinity of a flap portion of a drug solution container according to still another embodiment of the present invention, and FIG. 6(b) is a partially enlarged view of FIG. 6(a). FIG. 7(a) is a diagram showing a state in which the multiple protrusions are again fitted into the multiple recesses, and FIG. 7(b) is a diagram showing a state in which the openings have been turned up. FIG. 8 is a diagram showing the state in which the flap portion of the liquid medicine container is opened and used as an infusion bag. FIG. 9(a) is a top view showing the vicinity of a flap portion of a drug solution container according to a modification of still another embodiment, and FIG. 9(b) is a partially enlarged view of FIG. 9(a). 10(a), 10(b), and 10(c) are diagrams showing various modified examples of the cutting lines.

1 is a top view of a liquid medicine container 1 according to one embodiment of the present invention. The liquid medicine container 1 shown in FIG. 1 includes a container body 34 having a plurality of storage chambers for storing medicine, a port 20 having one end connected to the container body 34, and a seal material 28 covering the other end (medicinal solution outlet) of the port 20. The port 20 is composed of a cylindrical portion 22 and a mouth portion 24. The container body 34 shown in FIG. 1 is provided with a first storage chamber 32a and a second storage chamber 32b, and a weak seal portion that separates the first storage chamber 32a and the second storage chamber 32b. The first storage chamber 32a and the second storage chamber 32b contain a liquid medicine. The weak seal portion 36 can be peeled off by applying pressure from the outside to one of the storage chambers while the liquid medicine is stored in each storage chamber. By peeling off the weak seal portion 36, the first storage chamber 32a and the second storage chamber 32b are connected to each other, and the liquid medicine in each storage chamber can be mixed. In FIG. 1, the drug solution container 1 of this embodiment has two storage chambers, but it may have three or more storage chambers. Also, the drug solution outlet of the port 20 may be closed by a screw cap or the like instead of the sealing material 28.

As shown in FIG. 1, the drug solution container 1 of this embodiment has a seal portion 3. The seal portion 3 fixes the flap portion 11 onto the second storage chamber 32b in a state in which the flap portion 11 is folded toward the second storage chamber 32b. The seal portion 3 covers the flap portion 11 on the second storage chamber 32b, that is, it is preferable that the seal portion 3 covers at least the portion where the flap portion 11 and the second storage chamber 32b overlap, and may cover the flap portion 11 including the portion where the flap portion 11 and the second storage chamber 32b do not overlap as shown in FIG. 1. The seal portion 3 may be attached only to the tip portion 11b of the flap portion 11, or may be attached only to a part of the tip portion 11b of the flap portion 11.

2 is a top view of the infusion bag 2 according to one embodiment of the present invention. The infusion bag 2 is in a state before the flap portion 11 is fixed to the drug solution container 1 by the seal portion 3. As shown in FIG. 2, the infusion bag 2 has a flap portion 11, and the flap portion 11 is connected to the side portion of the container body 34 at the base end portion 11a of the flap portion. The flap portion 11 is provided with, for example, a circular hanging hole 9. The hanging hole 9 is provided, for example, in the center of the width direction of the flap portion 11. When administering drug solution to a patient, the user can hang the hanging hole 9 on a hanger, hook, or the like. The infusion bag 2 shown in FIG. 2 is a bag-shaped infusion bag having a storage chamber by fusing the peripheral portions of two films, and the peripheral portion of the infusion bag 2 is composed of a strong seal portion formed by fusing the film. Unlike the weak seal portion 36, the strong seal portion is strongly bonded so as not to peel off due to pressure, etc. In the infusion bag 2 in FIG. 2, part of the strong seal portion forms the flap portion 11. The hanging hole 9 is a hole that penetrates the two films in the thickness direction.

As shown in FIG. 1, the seal part 3 has an opening part 7 that covers at least a part of the hanging hole 9 and is configured to open the hanging hole 9 when in use. In FIG. 1, the opening part 7 is an area sandwiched between two perforations 13 (easy-tear treatment) located on both sides of the hanging hole 9. The opening part 7 does not need to be bonded to the flap part 11, but may be weakly bonded so that it can be easily torn by hand. The seal part 3 is attached to the flap part 11 and the second storage chamber 32b by adhesive or the like in a part other than the opening part 7. One end of the perforation 13 reaches the edge of the seal part 3 on the base end 11a side of the flap part 11, and by pinching the end of the opening part 7 on the base end 11a side with fingers, the opening part 7 can be turned up while tearing the two perforations 13. In this way, the hanging hole 9 can be exposed (opened). On the other hand, the other end of perforation 13 does not reach perforation 5, but ends within the range of sealed portion 3, and does not form a closed curve. Therefore, even after perforation 13 is torn open, opening portion 7 remains connected to sealed portion 3 at connecting portion 15 with the inherent strength of the material that makes up sealed portion 3. This allows hanging hole 9 to be opened without detaching opening portion 7 from sealed portion 3.

In order to alert the user to check whether the medicinal liquids have been mixed (i.e., whether the weak seal portion has been opened), it is preferable that the seal portion 3 is printed with, for example, "upper chamber, lower chamber, opening confirmed, unopened, do not use." In medical settings, many medicinal liquid containers are used at once, so if the opening portion 7 is separated from the seal portion 3 when opening the hanging hole 9, the amount of waste increases, and the parts originating from the separated opening portion 7 are scattered and difficult to dispose of. In the medicinal liquid container of this embodiment, the hanging hole 9 can be opened without separating the opening portion 7 from the seal portion 3, so the amount of waste is reduced and disposal is made easier.

2, the flap portion 11 has a shape that decreases in width from the base end 11a to the tip end 11b of the flap portion 11, such as a trapezoid or an arc shape. In other words, the flap portion 11 has a shape that decreases in width in the direction away from the second storage chamber 32b. The width of the flap portion 11 and the width of the container body 34 are widths in a direction perpendicular to the axis connecting the drug solution outlet of the port 20 and the hanging hole 9. When the width of the container body 34 changes along the axis, the maximum width of the container body 34 can be taken as the width of the container body.

In the liquid medicine container 1 of this embodiment, simply flipping over the opening 7 does not allow the flap portion 11 to be fixed onto the second storage chamber 32b, and the liquid medicine container 1 cannot be hung using the hanging hole 9. Therefore, even if the user forgets to mix the liquid medicines stored in the first storage chamber 32a and the second storage chamber 32b, the user can realize that the liquid medicines have not been mixed before using the hanging hole 9.

It is preferable that the seal portion 3 has a configuration in which the fixation of the flap portion 11 by the seal portion 3 is released when pressure is applied to the first storage chamber 32a or the second storage chamber 32b. With this configuration, the fixation of the flap portion 11 can be released at the same time as peeling off the weak seal portion 36, so that it can be immediately used. As an example of such a configuration, it is preferable that the seal portion 3 is subjected to an easy-to-tear treatment that allows it to be easily torn, such as the perforation 5 shown in Figure 1.

The easy-tear treatment may be applied along at least a portion of the edge 11c of the flap portion 11. In that case, when the portion that has been subjected to the easy-tear treatment tears (i.e., when a portion of the fixed flap portion 11 is released), the seal portion 3 can be manually torn by placing one's hand on the torn portion, and the fixed flap portion can be released. The easy-tear treatment may be applied along the entire edge 11c of the flap portion 11. In that case, the fixed flap portion can be easily released.

Figures 3A to 3C are top views showing specific examples of the seal portion 3 according to this embodiment. In the example shown in Figure 3A, two parallel perforations 13 are provided, and the area between the two parallel perforations 13 is the opening 7.

In FIG. 3A, the distance between the two parallel perforations 13 may be greater than or equal to the diameter of the hanging hole 9, but may also be smaller than the diameter of the hanging hole 9. If the distance between the two parallel perforations 13 is smaller than the diameter of the hanging hole 9, the opening 7 will cover only a portion of the hanging hole 9. Also, at least one of the two parallel perforations 13 may intersect the outer periphery of the hanging hole 9, and in this case too, the opening 7 will cover only a portion of the hanging hole 9.

In the example shown in FIG. 3B, a U-shaped perforation 13 is provided, and the area surrounded by the U-shaped perforation is the opening 7. In this case, the hanging hole can be exposed by hooking a finger on the tip of the U-shape of the perforation 13 and turning up the opening 7. The hanging hole 9 may be inside the U-shaped perforation 13, or the outer periphery of the hanging hole 9 and the U-shaped perforation 13 may have an intersection (for example, two intersections). In this case, the perforation 13 does not draw a closed curve, and even after turning up the opening 7, the opening 7 is connected to the seal part 3 at the connecting part 15. Therefore, the hanging hole 9 can be opened without separating the opening 7 from the seal part 3. The perforation 13 can be V-shaped, U-shaped, or other shapes instead of U-shaped.

In the example shown in FIG. 3C, a cross-shaped perforation 13 is provided in the portion of the seal portion 3 covering the hanging hole 9 (i.e., the opening portion 7) so that it can be easily torn and a hole can be made. In this case, the hanging hole 9 can be opened by tearing the perforation 13. In FIG. 3C, the two perforations 13 do not have to be perpendicular to each other, and do not have to be straight lines. Also, three or more perforations 13 may intersect at a single point. The intersection of the perforations 13 is inside the hanging hole 9. Each perforation 13 may intersect with the outer periphery of the hanging hole 9, but it does not have to intersect with it.

The material of the seal constituting the seal portion 3 is not particularly limited, and examples thereof include paper, synthetic paper, cloth, and plastic films such as polypropylene and polyethylene, and a laminate of these may also be used. The seal portion 3 may be attached to the flap portion 11 and the second storage chamber 32b via an adhesive, or may be bonded or fused to the flap portion 11 and the second storage chamber 32b by heat, such as heat sealing, or may be fixed onto the flap portion 11 and the second storage chamber 32b by a hook-and-loop fastener.

Figure 4 is a diagram showing another embodiment of the infusion bag of this embodiment. In the embodiment shown in Figure 4, the flap portion 11 protrudes from the central region of the side of the container body 34 (which has, for example, a substantially rectangular shape as shown in Figure 4). Furthermore, the width D1 of the flap portion 11 is smaller than the width D2 of the storage chamber closest to the flap portion 11 (the second storage chamber 32b in Figure 4). Note that, although the shape of the flap portion 11 in Figure 4 is a rectangle with rounded corners, it may also be a rectangle or a trapezoid. Furthermore, the periphery of the flap portion may be rounded like a part of a circular arc.

The two-dot chain line in FIG. 4 is a virtual line representing the boundary between the flap portion 11 and the container body 34. The rising point 14 is the end of the boundary line, and is the point where the flap portion 11, which has a protruding shape, begins to rise (protrude) from the side of the container body. The width D1 of the flap portion 11 is the distance between the two rising parts. There is no particular limit to D1 as long as it is smaller than D2, but the ratio of D1 to D2 (D1/D2) is preferably 0.96 or less, more preferably 0.93 or less, even more preferably 0.9 or less, and particularly preferably 0.88 or less. There is no particular limit to D1 as long as it is larger than the width of the hanging hole, but D1/D2 is preferably 0.2 or more, more preferably 0.3 or more, even more preferably 0.4 or more, and particularly preferably 0.5 or more. The infusion bag 2 of this embodiment having such a flap portion 11 can be opened more efficiently when combined with the above-mentioned seal portion 3. There are also no particular limitations on the height of the flap portion 11 (the maximum distance between the periphery of the flap portion 11 in the axial direction connecting the drug solution outlet of the port 20 and the hanging hole 9 and the above-mentioned virtual line), but it is preferably 0.1 to 0.6 times, and more preferably 0.2 to 0.5 times, the height of the storage chamber closest to the flap portion 11 (the second storage chamber 32b in FIG. 4) (the width of the storage chamber in the axial direction connecting the drug solution outlet of the port 20 and the hanging hole 9 (which may be the maximum width)).

When the flap portion 11 has a pair of sides parallel to the axis connecting the drug solution outlet of the port 20 and the hanging hole 9, and the distance between the pair of sides is D3, the ratio of D3 to D2 (D3/D2) is preferably 0.96 or less, more preferably 0.93 or less, even more preferably 0.9 or less, and particularly preferably 0.88 or less. Examples of such shapes include a rectangle. There are no particular restrictions on D3 as long as it is larger than the width of the hanging hole, but D3/D2 is preferably 0.2 or more, more preferably 0.3 or more, even more preferably 0.4 or more, and particularly preferably 0.5 or more.

Figure 5 is a diagram showing one embodiment of the drug solution container of this embodiment. In the embodiment shown in Figure 5, the flap portion 11 of the infusion bag 2 shown in Figure 4 is folded toward the second storage chamber 32b, and the seal portion 3 is provided to fix the flap portion 11 on the second storage chamber 32b. Here, since the flap portion 11 of the infusion bag 2 shown in Figure 4 has a width narrower than the width of the second storage chamber 32b, when pressure is applied to the first storage chamber 32a to mix the drug solutions in the first and second storage chambers, the flap portion 11 is likely to receive the expansion pressure generated on the second storage chamber 32b side in the entire flap portion 11. Therefore, the fixation of the seal portion 3 due to the expansion pressure is easily released. In particular, when the seal portion 3 covers almost the entire flap portion 11 on the storage portion, expansion pressure is unlikely to occur in the peripheral region of the second storage chamber 32b, and a gap is likely to occur between the seal portion 3 and the container body, so that there may be a portion where the expansion pressure is difficult to transmit to the seal portion 3. Therefore, for example, even if the easy-to-tear treatment is applied along the flap portion 11, a part of the flap portion 11 may be difficult to tear. However, in the drug solution container of FIG. 5, the width D1 of the flap portion 11 is smaller than the width D2 of the second storage chamber 32b, so that when the easy-to-tear treated part is applied along the periphery of the flap portion 11, the easy-to-tear treated part does not overlap with the peripheral region of the second storage chamber 32b, and the expansion pressure is easily transmitted to the entire part that has been subjected to the easy-to-tear treatment. Therefore, the fixing of the flap portion 11 by the seal portion 3 can be released more easily. In other words, in an infusion bag in which the width D1 of the flap portion 11 is smaller than the width D2 of the second storage chamber 32b, when the seal portion 3 is provided to fix the flap portion 11 to the second storage chamber 32b, the fixation can be released more easily by the expansion pressure. In addition, the distance D3 between the sides of the flap portion 11 is smaller than the width D2 of the storage chamber closest to the flap portion 11 (the second storage chamber 32b in FIG. 4), which provides the same effect as described above (easy release of the flap portion 11).

The medicinal liquid contained in the first storage chamber 32a and the second storage chamber 32b is not particularly limited, and may be one generally used as an infusion, for example, a nutritional infusion for intravenous administration. When the medicinal liquid is a nutritional infusion for intravenous administration, a sugar solution may be contained in the first storage chamber 32a, and an amino acid solution may be contained in the second storage chamber 32b. The nutritional infusion for intravenous administration may be an infusion such as a nutritional infusion for central venous administration or a nutritional infusion for peripheral venous administration, or may be a perfusion fluid, a dialysis fluid, or a preservation fluid.

Examples of sugars contained in the sugar solution include reducing sugars, and glucose is preferred. In addition to sugars, the sugar solution may contain electrolytes, pH adjusters, water-soluble vitamins such as vitamins B1, B6, and B12, and may contain fat-soluble vitamins such as vitamins A, D, and E together with a surfactant. The composition, pH, and other properties of the sugar solution can be appropriately changed depending on the patient's condition, etc.

The amino acids contained in the amino acid solution may be the amino acids themselves, or may be amino acid derivatives such as N-acetyl derivatives. In addition to amino acids, the amino acid solution may also contain electrolytes, pH adjusters, and water-soluble vitamins such as vitamin C. The composition, pH, etc. of the sugar solution can be appropriately changed depending on the patient's condition, etc.

The present invention is not limited to the above embodiment. For example, an easy-opening treatment other than perforation may be a non-penetrating cut line, and a part or all of the perforation 5 along the edge 11c of the flap portion 11 in FIG. 1 or 5 may be replaced with the cut line. Note that a non-penetrating cut is a cut made to a depth that does not penetrate the sealed portion in the thickness direction (a depth smaller than the thickness of the sealed portion). Also, a part or all of the perforation 5 made in the opening portion may be replaced with a non-penetrating cut line.
3A to 3C, the perforations 13 (the easy-to-tear treatment formed on the opening) may be replaced with a cut line that penetrates the seal portion 3 in the thickness direction. When the perforations 13 are replaced with a cut line, the hanging hole can be opened more easily. The seal portion 3 may cover the periphery of the flap portion in an area different from the storage chamber (for example, on the strong seal portion). The shape and size of the hanging hole 9 may be appropriately changed depending on the shape of the hook, the amount of the medicinal solution, etc.

The drug solution container 1 of this embodiment may have an auxiliary chamber in addition to the first storage chamber 32a and the second storage chamber 32b. The auxiliary chamber may contain, for example, a drug solution containing a surfactant and a fat-soluble vitamin, or a drug solution containing trace elements such as iron, manganese, zinc, copper, and iodine. A weak seal may be provided between the auxiliary chamber and the storage chamber, or between the auxiliary chambers.

With reference to Figures 6 and 7, further another embodiment of the present invention will be described. In the above embodiment, the perforation 5 (see Figures 1 and 5) made along the edge 11c of the flap portion 11 was linear. The perforation 5 had a trapezoidal or rectangular shape along the trapezoidal or rectangular flap portion 11. As shown in Figure 6 (a), in this embodiment, a tear line L is formed as an easy-to-tear treatment along the edge 11c of the flap portion 11. The tear line L is formed along the entire edge 11c extending in a predetermined direction. The easy-to-tear treatment may be applied not to the entire edge 11c but only to a part of the edge 11c (for example, only the center, etc.). The tear line L is not linear along the edge 11c, but meanders with respect to the edge 11c. The term "meandering" is a concept that includes any shape other than a straight shape, including a wave shape, a curved shape, or an uneven shape. The example shown in FIG. 6(a) has the same configuration as the example shown in FIG. 5, except that the perforation 5 as the easy-to-tear treatment has been changed to a tear line L including a cut line 40, and the configuration of the opening portion (easy-to-tear treatment) is different.

The tear line L is located on the weak seal portion 36 side (i.e., the port 20 side) of the edge 11c with respect to all or most of the edge 11c. The tear line L includes a cut line 40 that penetrates the seal portion 3 in the thickness direction, and uncut portions 44 (see FIG. 6(b)) provided at multiple locations along the cut line 40. The cut line 40 constitutes almost the entire portion of the tear line L (all except the uncut portions 44), and snakes around the edge 11c of the flap portion 11. The uncut portions 44 are portions of the seal portion 3 over a short length where no cuts are formed.

6(a), the seal portion 3 can be cut into a gate-shaped (C-shaped) edge portion 3a joined to the second storage chamber 32b by adhesive or the like, and a cover portion 3b covering most of the flap portion 11 including the hanging hole 9, with the cutting line 40 as a boundary. The cover portion 3b and the edge portion 3a are in a concave-convex fit. For example, the surface of the cover portion 3b is printed with a marking to call attention to the above-mentioned. The cover portion 3b may be partially adhered to the flap portion 11, for example. The hanging hole 9 of the flap portion 11 is arranged in the center of the cover portion 3b, and a first cut 8a and a second cut 8b are formed on the hanging hole 9 as an easy-to-tear treatment. The cover portion 3b is not adhered to the flap portion 11 or the adhesive strength is weakened in the band-shaped area around the tear line L (cutting line 40) and the area around the hanging hole 9 (first cut 8a and second cut 8b). That is, between the cover portion 3b and the flap portion 11, a non-adhesive region is formed in the region involved in the tearing of the cover portion 3b relative to the edge portion 3a and in the region involved in the opening of the hanging hole 9. Therefore, the cover portion 3b and the edge portion 3a can move freely or almost freely relative to each other in the concave-convex fitting portion.

6(b), the cutting line 40 forms a plurality of types of protrusions 50. The cutting line 40 includes a horizontal portion 42 extending in a predetermined direction (left-right direction in the figure) in which the edge 11c of the flap portion 11 extends, and a plurality of vertical portions 41 extending in an orthogonal direction (up-down direction in the figure) perpendicular to the predetermined direction. With this configuration, the cover portion 3b of the seal portion 3 has a plurality of protrusions 50 protruding in the orthogonal direction. The cover portion 3b has a plurality of protrusions 50 formed to be aligned in a predetermined direction. In the edge portion 3a, a plurality of recessed portions 55 having the same shape as the protrusions 50 are formed corresponding to the plurality of protrusions 50. The uncut portion 44 may be formed, for example, in the horizontal portion 42 (the top of the mushroom shape) of some of the protrusions 50. In this embodiment, the vertical portion 41 is a portion extending in the orthogonal direction, but the cutting line 40 may have a portion intersecting the predetermined direction at an angle (acute angle) other than 90 degrees.

Each of the protrusions 50 has a generally mushroom shape. The protrusions 50 include a narrow base portion 51 in a specific direction and a wide tip portion 52 that is continuous with the base portion 51. The protrusions 50 may have a plurality of unique shapes. For example, a hook portion 53 may be formed on either the left or right end or both ends of the tip portion 52 of the protrusions 50. The tear line L may have a wavy portion 46 at a position corresponding to a corner of the flap portion 11. The wavy portion 46 has a pair of uncut portions 44 at slightly offset opposing positions in the middle of the wavy double cutting line 40, so that a long and thin connecting portion is (temporarily) formed when the protrusions 50 are torn.

As shown in FIG. 6(a), the first slit 8a and the second slit 8b for the easy-to-tear treatment penetrate the cover part 3b in the thickness direction. The first slit 8a and the second slit 8b are both located outside the hanging hole 9 (they do not overlap the hanging hole 9 and do not cover the hanging hole 9). The arc-shaped first slit 8a is formed below the hanging hole 9 (upper side when the infusion bag 2 is in use). In addition, a pair of J-shaped second slits 8b are formed on the left and right of the first slit 8a. The pair of second slits 8b are tear guide parts that prevent the tear shape of the opening part 7 from becoming unnecessarily large when the opening part 7 is turned up (see FIG. 7(b)). The hanging hole 9 is appropriately exposed by the opening part 7, the first slit 8a, and the second slit 8b.

A user of the liquid medicine container 1 can expose (open) the hanging hole 9 by flipping up the opening 7. Even if the hanging hole 9 is exposed, as shown in FIG. 7(b), the opening 7 is not separated from the seal part 3 and remains connected to the seal part 3. In addition, simply flipping the opening 7 does not allow the flap part 11 to be fixed on the second storage chamber 32b, and the liquid medicine container 1 cannot be hung using the hanging hole 9. Therefore, even if the user forgets to mix the liquid medicine contained in the first storage chamber 32a and the second storage chamber 32b, the user can realize that the liquid medicine has not been mixed before using the hanging hole 9. In order to mix the liquid medicine in the first and second storage chambers 32a and 32b, the user applies pressure to the first storage chamber 32a, generating a swelling pressure on the second storage chamber 32b side and transmitting the swelling pressure to the entire flap part 11. At this time, if necessary, you can place your hands on the torn part, but even without using your hands, the projection 50 and the recessed part 55 can be disengaged by expansion pressure, and the fixed seal part 3 can be released. The flap part 11 will rise, and the user can hang it from the hanging hole 9 on a hanger, hook, etc. (See Figure 8).

According to the structure with the tear line L of this embodiment, the multiple protrusions 50 of the cover part 3b fit into the corresponding multiple recessed parts 55 of the edge part 3a, but when the cover part 3b is cut off from the edge part 3a along the cutting line 40, the protrusions 50 are released from the recessed parts 55 at the same time. Cutting along the cutting line 40 does not require a large external force, and the cover part 3b can be easily cut off by, for example, putting your hand on the tearing part. That is, the seal part 3 can be torn and released from the fixation. This operation can be easily performed even if, for example, a person with weak strength tries to tear the seal part 3. In addition, even if a part of the cover part 3b is accidentally torn off along the cutting line 40 due to the drop of the drug solution container 1, the protrusions 50 can again fit into or get caught in the recessed parts 55 (see FIG. 7(a)). When a hook portion 53 is formed on the tip portion 52 of the protrusion 50, the hook portion 53 bites into the recessed portion 55, making it easier for the protrusion 50 to be caught by the recessed portion 55. This provides the effect of making the cover portion 3b appear as if it has not been separated. Alternatively, as another effect, even if the drug solution container 1 is dropped, the tip portion 52 of the protrusion 50 gets caught in the recessed portion 55 after the drop, preventing the protrusion 50 from opening too much. When a hook portion 53 is formed on the tip portion 52 of the protrusion 50, the hook portion 53 bites into the recessed portion 55, making it possible to more effectively prevent the protrusion 50 from opening.

The multiple protrusions 50 of the cover portion 3b fit into the multiple corresponding recesses 55 of the edge portion 3a. Over a predetermined length of the edge 11c of the flap portion 11, the above-mentioned effects of being able to easily separate the cover portion 3b, making it appear as if the cover portion 3b has not been separated, and preventing large openings can be achieved.

A modified example of the above embodiment will be described with reference to FIG. 9. The tear line L shown in FIG. 9(a) also includes a plurality of (e.g., two) mushroom-shaped protrusions 50A arranged in a predetermined direction, a plurality of mountain-shaped protrusions 50B arranged in a predetermined direction, a wavy portion 46, and a plurality of uncut portions 44 formed in the wavy portion 46. This modified example differs from the above embodiment in that a portion of the tear line L crosses the edge 11c of the flap portion 11. For example, a portion of the tear line L including the plurality of mountain-shaped protrusions 50B extends at an angle to the predetermined direction in which the edge 11c extends, and approaches the cover portion 3b, i.e., the hanging hole 9, toward the center of the edge 11c. The plurality of mushroom-shaped protrusions 50A are located on the cover portion 3b side. Note that a pair of second cuts 8b are omitted around the hanging hole 9.

A structure with such a tear line L also achieves the same effects and advantages as the above-mentioned embodiment. In addition, by having an area (overlap area R) where the tear line L (cutting line 40) and the flap portion 11 overlap, the pressure that the cover portion 3b receives through the flap portion 11 is reduced. This structure makes it difficult for a stitch cut (breakage of the uncut portion 44) in the overlap area R due to a drop or the like to spread. Note that when the uncut portion 44 is formed only in the wavy portion 46, the above-mentioned effects and advantages are achieved in the area of the wavy portion 46 that overlaps with the flap portion 11.

The drug solution container with the meandering tear line L is not limited to the above-mentioned embodiment. For example, as shown in FIG. 10(a), a protrusion 50C may be used in which a rectangular root portion 51 and a rectangular tip portion 52 are combined. As shown in FIG. 10(b), a protrusion 50D may be used in which a rectangular root portion 51 and a circular (or elliptical) tip portion 52 are combined. As shown in FIG. 10(c), a protrusion 50E having a tapered shape that expands linearly from the root portion 51 to the tip portion 52 may be used. The protrusion is not limited to the above-mentioned various shapes, and various other modified forms may be used. Mushroom-shaped protrusions, mountain-shaped or wave-shaped protrusions, etc. may be appropriately combined. Linear perforations without protrusions may be incorporated between multiple protrusions.

Only one protrusion may be formed on the cover of the sealed portion. In that case, only one corresponding recess is formed on the edge. In the easy-to-cleave process, the uncut portion may be omitted. In that case, a cut line is formed that penetrates the sealed portion in the thickness direction over the entire area of the cleavage line.

In the above embodiment, it has been described that one or more protrusions 50 protrude from the cover portion 3b, and the protrusions 50 are fitted into one or more recessed portions 55 formed in the edge portion 3a, but it can also be understood that the opposite is true. That is, it can also be understood that one or more protrusions 50 protrude from the edge portion 3a, and the protrusions 50 of the edge portion 3a are fitted into one or more recessed portions 55 formed in the cover portion 3b. For example, as shown in FIG. 6(a), the edge portion 3a may have one or more protrusions 60 protruding in the cross direction. In this case, the cover portion 3b has a plurality of recessed portions 65 having the same shape as the protrusions 60, corresponding to the one or more protrusions 60. In FIG. 6(a), the protrusions 60 have a mushroom shape and include a narrow root portion 61 in a predetermined direction and a wide tip portion 62 continuous with the root portion 61. The protrusions 60 may have a plurality of unique shapes. For example, a hook portion 63 may be formed on either the left or right end or both ends of the tip portion 62 of the protrusion 60. The protrusion 60 formed on the edge portion 3a can fit into or hook onto the recessed portion 65, and can achieve the same effect as the protrusion 50.

1...medicinal solution container, 2...infusion bag, 3...sealed portion, 5...perforation, 7...opening portion, 9...hanging hole, 11...flap portion, 13...perforation, 14...rising point, 20...port, 22...tubular portion, 24...mouth portion, 28...sealing material, 32a...first storage chamber, 32b...second storage chamber, 34...container body, 36...weak seal portion, 40...cut line, 44...uncut portion, 50, 50A, 50B, 50C, 50D, 50E, 60...projection, 51...base portion, 52...tip portion, 55, 65...recessed portion, R...overlap region, L...tear line (easy-tear treatment).

Claims (5)

At least two chambers for containing a medicinal solution;
a weak seal portion that separates the storage chambers and that can be peeled off by applying pressure to the storage chambers from the outside;
A flap portion having a hanging hole and folded toward the storage chamber;
a seal portion that fixes the flap portion onto the storage chamber in a state where the flap portion is folded toward the storage chamber and covers the hanging hole,
the sealing portion has an opening portion configured to cover at least a part of the hanging hole and to be able to open the hanging hole without being separated from the sealing portion when the drug solution container is used;
The sealing portion is subjected to an easy-to-tear treatment including a cutting line penetrating the sealing portion in a thickness direction along at least a part of an edge of the flap portion extending in a predetermined direction, and the sealing portion can be cut at the cutting line as a boundary into an edge portion joined to the storage chamber and a cover portion covering the hanging hole;
The cutting line includes a plurality of portions extending in a cross direction crossing the predetermined direction, so that the cover portion has one or a plurality of protruding pieces protruding in the cross direction,
The protruding piece includes a base portion and a tip portion that is wider than the base portion in the predetermined direction.
Liquid medicine container. The drug solution container according to claim 1, wherein a hook portion is formed on either or both ends of the tip of the protruding piece in the predetermined direction. The drug solution container according to claim 1 or 2, wherein the tear line as the easy-to-tear treatment is formed by the tear line and the uncut portions provided at multiple points along the tear line. The drug solution container according to claim 1 or 2, in which the cutting line is formed through the seal portion in the thickness direction over the entire area of the tear line as the easy tearing treatment. The liquid medicine container according to any one of claims 1 to 4, wherein the cover portion has a plurality of the protrusions formed to be aligned in the predetermined direction.

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