TWI846924B - Drug containers and IV bags - Google Patents

Abstract

The liquid medicine container of the present invention comprises: at least two containing chambers for containing liquid medicine; a weak sealing portion which separates the containing chambers and can be peeled off by applying pressure to the containing chambers from the outside; a folding portion which is provided with a hanging hole and folded toward the containing chamber; and a sealing portion which fixes the folding portion to the containing chamber in a state of being folded toward the containing chamber and covers the hanging hole; the sealing portion has an opening portion which is configured to cover at least a portion of the hanging hole, and the hanging hole can be opened without being disconnected from the sealing portion when the liquid medicine container is used.

Description

Drug containers and IV bags

The present invention relates to a medicine liquid container and an intravenous solution bag.

Previously, intravenous drips were widely used for the purpose of replenishing water and electrolytes, replenishing nutrition, fixing blood vessels, and curing diseases. The intravenous drips are stored in intravenous drip bags, but sometimes the drugs contained in the intravenous drips contain unstable drugs, and if they are mixed in advance, they are prone to change over time. Such changes over time include the Mena reaction, in which amino acids react with glucose to cause browning.

In order to prevent the above-mentioned time-dependent changes before using the drip solution, for example, as shown in Patent Document 1, there is known a medical composite container for separating the pre-mixed drugs that are prone to time-dependent changes into different storage chambers. This medical composite container has two or more storage chambers, and the storage chambers are separated by a weak seal. Since the weak seal can be easily peeled off by applying pressure to the storage chamber containing the drip solution, the weak seal can be peeled off just before use to mix the drip solutions in each storage chamber. The medical composite container of Patent Document 1 is provided with a hanging hole for hanging the container body. After the drip solutions in each storage chamber are mixed, the medical composite container is hung with a hook or the like for use. [Prior art literature] [Patent literature]

Patent document 1: Japan Utility Model Registration No. 3074885

[The problem the invention is trying to solve]

Here, in Patent Document 1, it is shown that when using the above-mentioned medical composite container, in order not to forget to peel off the weak seal portion (i.e., mix the infusion solutions in each storage chamber) before administering the infusion solution, a tearable opening confirmation seal is attached in a manner of blocking the hanging hole, and a reminder to mix the medicine is displayed on the opening confirmation seal. In this way, if the opening confirmation seal is not peeled off, the hanging hole cannot be used, so even if the user forgets to mix the infusion solutions in each storage chamber, the user can be alerted when hanging the medical composite container on a hook or the like.

Although the medical composite container of Patent Document 1 can effectively remind the user, there is still room for improvement in order to more fully draw the user's attention.

The present invention was completed in view of the above situation, and its purpose is to provide a liquid medicine container that can more fully remind users to pay attention to mixing the liquid medicine in each receiving chamber before administering the liquid medicine such as an intravenous drip. [Technical means to solve the problem]

The liquid medicine container of the present invention comprises: at least two containing chambers for containing liquid medicine; a weak sealing portion which separates the containing chambers and can be peeled off by applying pressure to the containing chambers from the outside; a folding portion which is provided with a hanging hole and is folded toward the containing chamber; and a sealing portion which fixes the folding portion to the containing chamber in a state of being folded toward the containing chamber and covers the hanging hole; and the sealing portion has an opening portion which is configured to cover at least a portion of the hanging hole, and the hanging hole can be opened without being disconnected from the sealing portion when the liquid medicine container is used.

In the liquid medicine container of the present invention, if only the opening portion of the sealing portion is opened, the liquid medicine container cannot be hung using the hanging hole because the folding portion is still fixed on the second receiving chamber. Therefore, even if the opening portion is opened by mistake before the liquid medicine is mixed due to contact with medical equipment or other non-human factors, the user can find that the liquid medicine has not been mixed before using the hanging hole. Therefore, according to the present invention, the user's attention can be more fully drawn to remind him to mix the liquid medicine in each receiving chamber before administering the liquid medicine such as the drip solution.

Preferably, the seal portion is subjected to an easy-tear treatment along at least a portion of the edge of the folded portion. In this case, the seal portion can be easily torn along the easy-tear treatment, and the fixation of the folded portion can be easily released.

Preferably, the sealing portion covers the periphery of the folded portion on the receiving chamber. In this case, it is more effective to prevent the sealing portion from being torn due to contact with other medical instruments.

Preferably, the folded portion has a shape in which the width decreases toward the direction away from the receiving chamber. In this case, when pressure is applied to the receiving chamber to peel off the weak seal, the front end of the folded portion is easily subjected to the expansion pressure from the receiving chamber, and the seal is easily released.

Preferably, the opening portion only covers a portion of the hanging hole.

Preferably, the sealing portion has at least two intersecting cut lines or lines treated to be easy to tear at the opening portion. In this case, the opening portion can be easily opened.

Preferably, the folded portion has a shape protruding from the edge of the container body, and the width of the folded portion is smaller than the width of the receiving chamber closest to the folded portion. In this case, when pressure is applied to the receiving chamber to peel off the weak seal portion, the entire folded portion is easily subjected to the expansion pressure from the receiving chamber, making it easier to release the seal portion.

Preferably, the sealing portion is subjected to an easy-tear treatment including a cut line that passes through the sealing portion in the thickness direction along at least a portion of the edge extending in the specific direction of the folding portion, so that the sealing portion can be cut into an edge portion joined to the storage chamber and a cover portion covering the hanging hole with the cut line as a boundary; the cut line includes a plurality of portions extending in a cross direction intersecting the specific direction, so that the cover portion has one or more protrusions protruding in the cross direction. In this case, one or more protrusions of the cover portion are engaged with one or more corresponding concave portions of the edge portion, but the cover portion is cut from the edge portion along the cut line, and at the same time, the protrusion is detached from the concave portion. Cutting along the cutting line does not require a large external force. For example, the cover can be easily separated by placing a hand on the tearing part (i.e., tearing the sealing part to release the fixation). In the case where a part of the cover is accidentally separated along the cutting line due to the drop of the liquid medicine container, the protruding piece can be re-engaged or engaged with the concave part. Therefore, the effect of being able to regard the cover as not being separated can be exerted.

Preferably, the cover has a plurality of protrusions arranged in a specific direction. In this case, the plurality of protrusions of the cover fit into the corresponding plurality of concave portions of the edge portion. This can achieve the following effects: the specific length of the edge of the folded portion can be covered, and the cover as described above can be easily divided, or the cover can be regarded as undivided.

The intravenous solution bag of the present invention comprises: a container body having: at least two receiving chambers for receiving liquid medicine; a weak sealing portion separating the receiving chambers and being detachable by applying pressure to the receiving chambers from the outside; and a folding portion having a hanging hole and protruding from the container body; and the folding portion protruding from the edge of the container body of the intravenous solution bag, and the width of the folding portion is smaller than the width of the receiving chamber closest to the folding portion. When such an intravenous solution bag is used as a liquid medicine container in which the folding portion is fixed to the receiving chamber by the sealing portion in a state where the folding portion is folded toward the receiving chamber, the fixing of the sealing portion can be easily released during use. [Effect of the invention]

According to the present invention, the user's attention can be more fully drawn to remind him to mix the liquid medicine in each containing chamber before administering the liquid medicine such as the drip solution.

FIG. 1 is a top view of a drug liquid container 1 in one embodiment of the present invention. The drug liquid container 1 shown in FIG. 1 comprises: a container body 34 having a plurality of storage chambers for storing drugs; a port 20, one end of which is connected to the container body 34; and a sealing material 28, which covers the other end of the port 20 (drug liquid outlet). 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 sealing portion separating the first storage chamber 32a and the second storage chamber 32b. Drug liquid is stored in the first storage chamber 32a and the second storage chamber 32b. The weak seal 36 can be peeled off by applying pressure to any of the receiving chambers from the outside when the medical solution is stored in each receiving chamber. By peeling off the weak seal 36, the first receiving chamber 32a and the second receiving chamber 32b are connected, and the medical solutions in each receiving chamber can be mixed. In addition, in FIG. 1, the medical solution container 1 of this embodiment has two receiving chambers, but it can also have three or more receiving chambers. In addition, the medical solution outlet of the port 20 can also be sealed by a nut or the like instead of the sealing material 28.

As shown in FIG1 , the liquid medicine container 1 of this embodiment has a sealing portion 3. The sealing portion 3 fixes the folding portion 11 to the second receiving chamber 32b in a state where the folding portion 11 is folded toward the second receiving chamber 32b. Preferably, the sealing portion 3 covers the folding portion 11 on the second receiving chamber 32b, that is, at least covers the overlapping portion of the folding portion 11 and the second receiving chamber 32b. As shown in FIG1 , the sealing portion 3 may also cover the folding portion 11 internally including the portion where the folding portion 11 and the second receiving chamber 32b do not overlap. In addition, the sealing portion 3 may be attached only to the front end portion 11b of the folding portion 11, or may be attached only to a portion of the front end portion 11b of the folding portion 11.

Here, Figure 2 is a top view of an intravenous solution bag 2 of an embodiment of the present invention. The intravenous solution bag 2 is a state before the folded portion 11 is fixed by the sealing portion 3 in the drug container 1. As shown in Figure 2, the intravenous solution bag 2 has a folded portion 11, and the folded portion 11 is connected to the edge of the container body 34 at the base end portion 11a of the folded portion. A hanging hole 9, for example, in a circular shape is provided on the folded portion 11. The hanging hole 9 is provided in the central portion of the width direction of the folded portion 11, for example. When the user administers the drug solution to the patient, the hanging hole 9 can be hung on a hanger, a hook, etc. for use. The intravenous solution bag 2 shown in Figure 2 is a bag-shaped intravenous solution bag having a storage chamber as a result of welding the peripheral portions of two films. The periphery of the intravenous solution bag 2 is composed of a strong sealing portion of the welded film. Unlike the weak seal 36, the strong seal is strongly bonded and will not be separated due to pressure, etc. In the intravenous solution bag 2 of Fig. 2, a part of the strong seal constitutes the folded portion 11. The hanging hole 9 is a hole that passes through the two films in the thickness direction.

As shown in FIG. 1 , the sealing portion 3 has an opening portion 7, which covers at least a portion of the hanging hole 9 and is configured to open the hanging hole 9 when in use. In FIG. 1 , the opening portion 7 is an area between two perforated lines 13 (easy-tear treatment) located on both sides of the hanging hole 9. Although the opening portion 7 may not be connected to the folding portion 11, it may be weakly connected thereto and can be easily torn by manual operation. The portion of the sealing portion 3 other than the opening portion 7 is attached to the folding portion 11 and the second receiving chamber 32b by adhesives or the like. One end of the perforated line 13 reaches the edge of the sealing part 3 at the base end 11a side of the folded part 11. By pinching the end of the opening part 7 at the base end 11a side with fingers, the two perforated lines 13 can be torn and the opening part 7 can be lifted. In this way, the hanging hole 9 can be exposed (opened). On the other hand, the other end of the perforated line 13 does not reach the perforated line 5 but ends within the range of the sealing part 3, so no closing curve is drawn. Therefore, after the perforated line 13 is torn, the opening part 7 is still connected to the sealing part 3 by the connecting part 15 with the original strength to form the material of the sealing part 3. In this way, the hanging hole 9 can be opened without separating the opening part 7 from the sealing part 3.

In order to draw the user's attention and confirm whether the mixing of the liquid medicine has been carried out (i.e., whether the weak sealing part has been opened), it is preferred to print words such as "upper chamber, lower chamber, opening confirmation, unopened, unusable" on the sealing part 3. In medical fields, since a large number of liquid medicine containers are used in a short period of time, if the opening part 7 and the sealing part 3 are separated when the hanging hole 9 is opened, the amount of garbage increases, and the parts from the separated opening part 7 are scattered, which is more troublesome to handle. In the liquid medicine container of this embodiment, since the hanging hole 9 can be opened without separating the opening part 7 from the sealing part 3, the amount of garbage is reduced and it is easy to handle.

As shown in FIG. 2 , the folding portion 11 has a shape such as a trapezoid or an arc shape, and the width decreases from the base end 11a of the folding portion 11 to the front end 11b. That is, the folding portion 11 has a shape in which the width decreases in the direction away from the second receiving chamber 32b. In addition, the width of the folding portion 11 and the width of the container body 34 are the widths in the direction orthogonal to the axis of the liquid outlet of the connection port 20 and the hanging hole 9. In the case where the width of the container body 34 changes along the axis, the maximum width of the container body 34 can be set to the width of the container body.

In the drug container 1 of this embodiment, if only the opening portion 7 is opened, the folding portion 11 is still fixed to the second receiving chamber 32b, so the drug container 1 cannot be hung using the hanging hole 9. Therefore, even if the user forgets to mix the drug contained in the first receiving chamber 32a and the second receiving chamber 32b, the user can still find that the drug has not been mixed before using the hanging hole 9.

The sealing part 3 preferably has a structure that releases the fixing of the sealing part 3 to the folded part 11 when pressure is applied to the first receiving chamber 32a or the second receiving chamber 32b. With such a structure, the fixing of the folded part 11 can be released while peeling off the weak sealing part 36, so that the state can be set to be used immediately. As such a structure, it is preferable to perform an easy-tear treatment on the sealing part 3 so that it can be easily torn, such as the perforated line 5 shown in FIG. 1.

The easy-tear treatment can be applied along at least a portion of the edge 11c of the folded portion 11. In this case, when the portion to which the easy-tear treatment has been applied is torn (i.e., when a portion of the folded portion 11 is released from fixation), the seal portion 3 can be torn by hand by placing a hand on the torn portion, thereby releasing the fixation of the folded portion. The easy-tear treatment can also be applied along the entire edge 11c of the folded portion 11. In this case, the fixation of the folded portion can be easily released.

3 (A) to (C) are top views showing specific examples of the sealing portion 3 of this embodiment. In the example shown in FIG3 (A), two parallel perforated lines 13 are provided, and the area sandwiched between the two parallel perforated lines 13 is the opening 7.

In FIG. 3(A), the distance between the two parallel perforated lines 13 may be greater than the diameter of the hanging hole 9, but may also be smaller than the diameter of the hanging hole 9. When the distance between the two parallel perforated lines 13 is smaller than the diameter of the hanging hole 9, the opening 7 only covers a portion of the hanging hole 9. In addition, at least one of the two parallel perforated lines 13 may also intersect the outer periphery of the hanging hole 9, in which case the opening 7 also only covers a portion of the hanging hole 9.

In the example shown in FIG. 3(B), a U-shaped perforated line 13 is provided, and the area surrounded by the U-shaped perforated line in the opening portion 7 is the opening portion 7. In this case, the hanging hole can be exposed by placing a finger on the front end of the U-shaped perforated line 13 to lift up the opening portion 7. The hanging hole 9 can be located on the inner side of the U-shaped perforated line 13, and the outer periphery of the hanging hole 9 and the U-shaped perforated line 13 can also have intersections (for example, 2 intersections). In this case, the perforated line 13 does not describe a closed curve, and after lifting up the opening portion 7, the opening portion 7 is still connected to the sealing portion 3 by the connecting portion 15. Therefore, the hanging hole 9 can be opened without separating the opening portion 7 from the sealing portion 3. In addition, the perforated line 13 can also be set to a V-shaped, a C-shaped, or the like shape instead of a U-shaped shape.

In the example shown in FIG3(C), a cross-shaped perforation line 13 is applied to the portion of the sealing portion 3 covering the hanging hole 9 (i.e., the opening portion 7) so that the hole can be easily torn open. In this case, the hanging hole 9 can be opened by tearing the perforation line 13. In FIG3(C), the two perforation lines 13 may not be orthogonal or may not be straight lines. In addition, three or more perforation lines 13 may intersect at one point. The intersection of the perforation lines 13 is located on the inner side of the hanging hole 9. Each perforation line 13 may intersect with the outer periphery of the hanging hole 9 or may not intersect.

The material of the seal forming the sealing portion 3 is not particularly limited, and examples thereof include paper, synthetic paper, cloth, plastic films such as polypropylene and polyethylene, and laminated materials thereof may also be used. The sealing portion 3 may be attached to the folded portion 11 and the second receiving chamber 32b via an adhesive, but may also be heat-bonded or fused to the folded portion 11 and the second receiving chamber 32b by heat sealing or the like, or may be fixed to the folded portion 11 and the second receiving chamber 32b by a fastener.

FIG. 4 is a diagram showing another embodiment of the intravenous solution bag of the present embodiment. In the embodiment shown in FIG. 4 , the folded portion 11 protrudes from the central area of the edge of the container body 34 (for example, as shown in FIG. 4 , having a substantially rectangular shape). In addition, the width D1 of the folded portion 11 is smaller than the width D2 of the receiving chamber closest to the folded portion 11 (the second receiving chamber 32b in FIG. 4 ). In addition, in FIG. 4 , the shape of the folded portion 11 is a rectangular shape with rounded corners, but it may also be a rectangular shape or a trapezoidal shape. In addition, the periphery of the folded portion may also have an arc like a part of a circular arc.

The two-point chain in Figure 4 is an imaginary line representing the boundary between the fold portion 11 and the container body 34. The vertical point 14 is the end of the boundary line, and the fold portion 11 of the protruding shape is the portion that stands upright (protrudes) from the edge of the container body. The width D1 of the fold portion 11 is the distance between the two vertical portions. If D1 is less than D2, there is no special restriction, but the ratio of D1 to D2 (D1/D2) is preferably less than 0.96, more preferably less than 0.93, further preferably less than 0.9, and particularly preferably less than 0.88. In addition, if D1 is greater than the width of the hanging hole, there is no special restriction, but D1/D2 is preferably greater than 0.2, more preferably greater than 0.3, further preferably greater than 0.4, and particularly preferably greater than 0.5. When the intravenous solution bag 2 of this embodiment having such a folded portion 11 is combined with the above-mentioned sealing portion 3, it can be opened more effectively. In addition, the height of the folded portion 11 (the maximum distance between the periphery of the folded portion 11 and the above-mentioned imaginary line in the axial direction of the liquid medicine outlet of the connection port 20 and the hanging hole 9) is not particularly limited, but is preferably 0.1 to 0.6 times the height of the storage chamber (the second storage chamber 32b in FIG. 4) closest to the folded portion 11 (the width of the storage chamber in the axial direction of the liquid medicine outlet of the connection port 20 and the hanging hole 9 (which may also be the maximum width)), and more preferably 0.2 to 0.5 times.

When the folded portion 11 has a pair of side edges parallel to the axis of the liquid medicine outlet of the connection port 20 and the hanging hole 9, if the distance between the pair of side edges is set to D3, the ratio of D3 to D2 (D3/D2) is preferably 0.96 or less, more preferably 0.93 or less, further preferably 0.9 or less, and particularly preferably 0.88 or less. As such a shape, a rectangle is exemplified. If D3 is greater than the width of the hanging hole, there is no particular restriction, but D3/D2 is preferably 0.2 or more, more preferably 0.3 or more, further preferably 0.4 or more, and particularly preferably 0.5 or more.

FIG. 5 is a diagram showing an embodiment of the liquid medicine container of this embodiment. In the embodiment shown in FIG. 5 , the folded portion 11 of the intravenous solution bag 2 shown in FIG. 4 is folded toward the second receiving chamber 32b, and the sealing portion 3 is provided to fix the folded portion 11 on the second receiving chamber 32b. Here, since the folded portion 11 of the intravenous solution bag 2 shown in FIG. 4 has a width narrower than the width of the second receiving chamber 32b, when pressure is applied to the first receiving chamber 32a in order to mix the liquid medicines in the first and second receiving chambers, the entire folded portion 11 is easily subjected to the expansion pressure generated on the side of the second receiving chamber 32b. Therefore, the fixing of the sealing portion 3 is easily released by the expansion pressure. In particular, when the sealing portion 3 covers almost the entire folded portion 11 on the receiving portion, it is difficult to generate expansion pressure in the peripheral area of the second receiving chamber 32b, and a gap is easily generated between the sealing portion 3 and the container body, so there is a case where it is difficult to transmit the expansion pressure to the sealing portion 3. Therefore, when the easy-tear treatment is applied along the folded portion 11, there is a case where a part is difficult to tear. However, in the liquid medicine container of FIG. 5 , since the width D1 of the folded portion 11 is smaller than the width D2 of the second receiving chamber 32b, when the easy-tear treatment portion is applied along the periphery of the folded portion 11, the easy-tear treatment portion does not overlap with the peripheral area of the second receiving chamber 32b, and the expansion pressure is easily transmitted to the entire portion to which the easy-tear treatment is applied. Therefore, it is easier to release the fixing of the folded portion 11 by the sealing portion 3. In other words, in the case where the width D1 of the folded portion 11 is smaller than the width D2 of the second receiving chamber 32b, when the sealing portion 3 is provided to fix the folded portion 11 to the second receiving chamber 32b, the fixing can be more easily released by the expansion pressure. Furthermore, by making the distance D3 between the side edges of the folding portion 11 smaller than the width D2 of the receiving chamber closest to the folding portion 11 (the second receiving chamber 32b in FIG. 4), the same effect as described above (easy release of the folding portion 11) can be achieved.

The liquid medicine stored in the first storage chamber 32a and the second storage chamber 32b is not particularly limited, and generally used as a drip solution, for example, a nutrient drip solution for intravenous administration may be listed. When the liquid medicine is a nutrient drip solution for intravenous administration, a sugar solution may be stored in the first storage chamber 32a, and an amino acid solution may be stored in the second storage chamber 32b. In addition, as a nutrient drip solution for intravenous administration, a nutrient drip solution for central intravenous administration or a nutrient drip solution for peripheral intravenous administration, or a perfusion solution, a dialysate, or a storage solution may be used.

As the sugar contained in the sugar solution, reducing sugar is listed, preferably glucose. In addition to sugar, the sugar solution may also contain electrolytes, pH regulators, water-soluble vitamins such as vitamin B1, B6, and B12, and may also contain fat-soluble vitamins such as vitamin A, D, and E together with surfactants. The composition and pH of the sugar solution may be appropriately changed according to the patient's disease state.

The amino acid solution contains amino acids, which may be amino acids themselves or derivatives of amino acids such as N-acetyl derivatives. In addition to amino acids, the amino acid solution may also contain electrolytes, pH regulators, water-soluble vitamins such as vitamin C. The composition and pH of the sugar solution may be appropriately changed according to the patient's condition.

The present invention is not limited to the above-mentioned implementation forms. For example, as an easy-opening treatment other than the perforated line, a non-through cut line is listed, and the cut line can also replace part or all of the perforated lines 5 along the edge 11c of the folded part 11 in Figure 1 or Figure 5. In addition, the non-through cut is a cut applied to a depth that does not penetrate the sealing part in the thickness direction (less than the depth of the thickness of the sealing part). In addition, part or all of the perforated lines 5 applied to the opening part can also be replaced by non-through cut lines. In addition, the perforated lines 13 in Figures 3 (A) to (C) (easy-open treatment formed in the opening part) can also be replaced by a cut line that penetrates the sealing part 3 in the thickness direction. When the perforated line 13 is replaced by a cut line, it is easier to open the hanging hole. Furthermore, the sealing portion 3 may also cover the periphery of the folded portion in a region different from the storage chamber (e.g., on the strong sealing portion). The shape and size of the hanging hole 9 may also be appropriately changed according to the shape of the hook, the amount of the liquid medicine, etc.

Furthermore, the liquid medicine container 1 of this embodiment may have a sub-chamber in addition to the first receiving chamber 32a and the second receiving chamber 32b. For example, liquid medicine containing surfactants and fat-soluble vitamins, liquid medicine containing trace elements such as iron, manganese, zinc, copper, and iodine, etc. may be contained in the sub-chamber. A weak seal may also be provided between the sub-chamber and the receiving chamber or between the sub-chambers.

Referring to Figures 6 and 7, another embodiment of the present invention will be described. In the above embodiment, the perforated line 5 (refer to Figures 1 and 5) applied along the edge 11c of the fold portion 11 is in a straight line shape. The perforated line 5 is in a trapezoidal or rectangular shape along the trapezoidal or rectangular fold portion 11. As shown in Figure 6(a), in this embodiment, a tear line L is formed along the edge 11c of the fold portion 11 as an easy-tear treatment. The tear line L is formed along the entire edge 11c extending in a specific direction. In addition, the easy-tear treatment can also be applied only to a portion of the edge 11c (for example, only the center, etc.) rather than the entire edge 11c. The tear line L is meandering relative to the edge 11c rather than being a straight line along the edge 11c. "Meandering" is a concept that includes all shapes other than straight lines, such as wave-shaped, curved or concave-convex shapes. The example shown in FIG. 6(a) has the same structure as the example shown in FIG. 5 except that the perforated line 5 used as the easy-tear treatment is changed to the tear line L including the cutting line 40, and the structure of the opening portion (easy-tear treatment) is different.

The tear line L is located on the weak seal portion 36 side (i.e., the port 20 side) relative to the entire or most of the edge 11c. The tear line L includes a cut line 40 that passes through the seal portion 3 in the thickness direction, and uncut portions 44 disposed at a plurality of locations in the middle of the cut line 40 (see FIG. 6(b)). The cut line 40 constitutes almost all of the tear line L (except the entire uncut portion 44), and meanders relative to the edge 11c of the folding portion 11. The uncut portion 44 is a portion of the seal portion 3 that is not cut over a certain length.

As shown in FIG. 6( a), the sealing portion 3 can be cut into a door-shaped (C-shaped) edge portion 3a joined to the second receiving chamber 32b by connection with a cutting line 40 as a boundary, and a cover portion 3b covering most of the folded portion 11 including the hanging hole 9. The cover portion 3b is concavely and convexly fitted with the edge portion 3a. For example, the above-mentioned cautionary words are printed on the surface of the cover portion 3b. The cover portion 3b can also be partially connected to the folded portion 11. The hanging hole 9 of the folded portion 11 is arranged in the center of the cover portion 3b, and the first slit 8a and the second slit 8b are formed relative to the hanging hole 9 for easy tearing. The band-shaped area around the tear line L (cut line 40) and the area around the hanging hole 9 (the first slit 8a and the second slit 8b) of the cover 3b is not connected to the folded portion 11 or the bonding force of the adhesive is weak. That is, a non-bonded area is formed between the cover 3b and the folded portion 11, in the area related to the tearing of the cover 3b relative to the edge portion 3a, and in the area related to the opening of the hanging hole 9. Therefore, the cover 3b and the edge portion 3a can move freely or substantially freely relative to each other in the concave-convex fitting portion.

As shown in FIG. 6( b ), the cut line 40 forms a plurality of protrusions 50. The cut line 40 includes a transverse portion 42 extending in a specific direction (left-right direction in the figure) extending along the edge 11 c of the folded portion 11, and a plurality of longitudinal portions 41 extending in an orthogonal direction (up-down direction in the figure) orthogonal to the specific direction. With this configuration, the cover portion 3b of the sealing portion 3 has a plurality of protrusions 50 protruding in the orthogonal direction. The cover portion 3b has a plurality of protrusions 50 formed in an array in a specific direction. In the edge portion 3a, a plurality of concave 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 in a portion of the protrusions 50, such as the transverse portion 42 (the top of the mushroom shape) of the protrusions 50. In addition, in the present embodiment, the longitudinal portion 41 is a portion extending in the orthogonal direction, but the cutting line 40 may also have a portion intersecting the specific direction at an angle (sharp angle) other than 90 degrees.

Each of the tabs 50 has a roughly mushroom shape. The tab 50 includes a root 51 with a narrow width in a specific direction, and a front end 52 with a wide width continuous with the root 51. The tab 50 may also have a plurality of inherent shapes. For example, a hook portion 53 may be formed at either or both ends of the front end 52 of the tab 50. The tear line L may also have a wavy portion 46 at a position corresponding to the corner of the folded portion 11. The wavy portion 46 includes a pair of uncut portions 44 at positions slightly offset and opposite to each other in the middle of the wavy double cut line 40, and has a structure that forms a thin and long connecting portion (temporarily) when torn.

As shown in FIG6(a), the first slit 8a and the second slit 8b for easy tearing pass through the cover portion 3b in the thickness direction. The first slit 8a and the second slit 8b are both arranged on the outside of the hanging hole 9 (not overlapping with the hanging hole 9 and not covering the hanging hole 9). The arc-shaped first slit 8a is formed on the lower side of the hanging hole 9 (the upper side when the drip 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 guides that prevent the tearing shape of the opening portion 7 from becoming unnecessarily large when the opening portion 7 is lifted (refer to FIG7(b)). The hanging hole 9 is preferably exposed by the opening 7, the first slit 8a and the second slit 8b.

The user of the liquid medicine container 1 can expose (open) the hanging hole 9 by lifting the opening portion 7. Even if the hanging hole 9 is exposed, as shown in FIG. 7(b), the opening portion 7 will not be separated from the sealing portion 3, but will remain connected to the sealing portion 3. Moreover, if only the opening portion 7 is lifted, the hanging hole 9 cannot be used to hang the liquid medicine container 1 because the folding portion 1 is still fixed to the second receiving chamber 32b. Therefore, even if the user forgets to mix the liquid medicines contained in the first receiving chamber 32a and the second receiving chamber 32b, the user can still find that the liquid medicines have not been mixed before using the hanging hole 9. In order to mix the liquid medicines in the first and second receiving chambers 32a and 32b, the user applies pressure to the first receiving chamber 32a, so that an expansion pressure is generated on the side of the second receiving chamber 32b, and the expansion pressure is transmitted to the entire folding portion 11. At this time, the user can also put his hands on the tearing portion as needed, but even if he does not use his hands, the expansion pressure can open the engagement between the protruding piece 50 and the concave portion 55, and release the fixing of the sealing portion 3. The folding portion 11 stands upright, and the user can hang the hanging hole 9 on a hanger, a hook, etc. for use (refer to Figure 8).

According to the structure with the tear line L of this embodiment, the plurality of protrusions 50 of the cover 3b are engaged with the corresponding plurality of concave portions 55 of the edge portion 3a, but when the cover 3b is separated from the edge portion 3a along the cutting line 40, the protrusions 50 are separated from the concave portions 55. The cutting along the cutting line 40 does not require a large external force, for example, the cover 3b can be easily separated by placing a hand on the tearing portion. That is, the sealing portion 3 can be torn open and the fixation can be released. This operation can also be easily performed when, for example, a person with a weak strength wants to tear open the sealing portion 3. In addition, when a part of the cover 3b is mistakenly cut along the cutting line 40 due to the drop of the liquid medicine container 1, the protruding piece 50 can be again fitted or engaged with the concave portion 55 (see FIG. 7 (a)). If a hook portion 53 is formed at the front end portion 52 of the protruding piece 50, the protruding piece 50 can be easily engaged with the concave portion 55 by engaging the hook portion 53 with the concave portion 55. Therefore, the effect of being regarded as the cover 3b is not cut can be exerted. Or, as another effect, when the liquid medicine container 1 falls, the effect of suppressing large cracking can be exerted by engaging the front end portion 52 of the protruding piece 50 with the concave portion 55 after the fall. If the hook portion 53 is formed at the front end portion 52 of the protruding piece 50 , the hook portion 53 can be engaged with the concave portion 55 , thereby more effectively suppressing the tearing.

The plurality of protrusions 50 of the cover 3b are engaged with the corresponding plurality of concave portions 55 of the edge 3a. As described above, the cover 3b can be easily cut over a specific length of the edge 11c of the fold 11, the cover 3b can be regarded as uncut, and large tearing can be suppressed.

Referring to FIG. 9 , a variation of the above-mentioned embodiment is described. The tear line L shown in FIG. 9 (a) also includes: a plurality of (for example, 2) mushroom-shaped tabs 50A, which are formed in an arrangement in a specific direction; a plurality of mountain-shaped tabs 50B, which are formed in an arrangement in a specific direction; a wavy portion 46; and a plurality of uncut portions 44, which are formed in the wavy portion 46. The difference between this variation and the above-mentioned embodiment is that a portion of the tear line L crosses the edge 11c of the folded portion 11. For example, a portion of the tear line L including a plurality of mountain-shaped tabs 50B extends obliquely in a direction having a certain angle relative to the specific direction in which the edge 11c extends, and approaches the cover portion 3b, i.e., the hanging hole 9, as it moves toward the center of the edge 11c. A plurality of mushroom-shaped protrusions 50A are located on the side of the cover 3b. In addition, around the hanging hole 9, a pair of second slits 8b are omitted.

According to the structure with such tear line L, the same action and effect as the above-mentioned embodiment are also exerted. In addition, the tear line L (cut line 40) and the folding part 11 have an overlapping area (overlapping area R), thereby reducing the pressure received by the cover part 3b through the folding part 11. This structure is not easy to expand the pinhole sheet (uncut part 44 is broken) in the overlapping area R due to falling, etc. In addition, when the uncut part 44 is formed only in the wavy part 46, the above-mentioned action and effect are exerted in the area of the wavy part 46 that overlaps with the folding part 11.

The liquid medicine container with the shape of the tear line L winding is not limited to the above-mentioned implementation forms. For example, as shown in Figure 10 (a), a protrusion 50C composed of a rectangular root 51 and a rectangular front end 52 can also be used. As shown in Figure 10 (b), a protrusion 50D composed of a rectangular root 51 and a circular (or elliptical) front end 52 can also be used. As shown in Figure 10 (c), a protrusion 50E having a conical shape extending linearly from the root 51 to the front end 52 can also be used. As a protrusion, it is not limited to the various forms mentioned above, and other various variations can also be used. Mushroom-shaped protrusions, mountain-shaped or wavy protrusions, etc. can also be appropriately combined. Straight perforated lines without protrusions can also be assembled between multiple protrusions.

It is also possible to form only one protrusion on the cover of the sealing part. In this case, only one corresponding concave part is formed on the edge. In the easy tearing process, the uncut part can also be omitted. In this case, a cutting line that passes through the sealing part in the thickness direction is formed in the entire area of the tearing line.

In addition, in the above-mentioned embodiment, it is described that one or more protrusions 50 protrude from the cover portion 3b, and the protrusions 50 are respectively fitted into one or more concave portions 55 on the edge portion 3a, but it can also be understood in the opposite way. 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 respectively fitted into one or more concave portions 55 formed on the cover portion 3b. For example, as shown in FIG. 6(a), the edge portion 3a may also have one or more protrusions 60 protruding in the cross direction. In this case, on the cover portion 3b, corresponding to one or more protrusions 60, a plurality of concave portions 65 having the same shape as the protrusion 60 are formed. In FIG. 6( a ), the protrusion 60 has a mushroom shape, including a root portion 61 having a narrow width in a specific direction, and a front end portion 62 having a wide width continuous with the root portion 61. The protrusion 60 may also have a plurality of inherent shapes. For example, a hook portion 63 may be formed at either or both of the left and right ends of the front end portion 62 of the protrusion 60. The protrusion 60 formed on the edge portion 3 a may be fitted or engaged with the concave portion 65, and may exert the same effect as the protrusion 50.

1: Drug container 2: IV bag 3: Sealing part 3a: Edge 3b: Cover 5: Perforated line 7: Opening part 8a: First slit 8b: Second slit 9: Hanging hole 11: Folding part 11a: Base end 11b: Front end 11c: Edge 13: Perforated line 14: Vertical point 15: Connection part 20: Port 22: Cylindrical part 24: Mouth 28: Sealing material 32a: First storage chamber 32b: Second storage chamber 34: Container body 36: Weak seal =Part 40: Cutting line 41: Vertical part 42: Horizontal part 44: Uncut part 46: Corrugated part 50: Tab 50A: Tab 50B: Tab 50C: Tab 50D: Tab 50E: Tab 51: Root 52: Front end 53: Hook 55: Concave part 60: Tab 61: Root 62: Front end 63: Hook 65: Concave part D1: Width D2: Width D3: Distance L: Tear line (easy tear treatment) R: Overlap area

FIG. 1 is a top view of a liquid medicine container in one embodiment of the present invention. FIG. 2 is a top view of an intravenous solution bag in one embodiment of the present invention. FIG. 3 (A) to (C) are top views showing various specific examples of the sealing portion in one embodiment of the present invention. FIG. 4 is a top view of an intravenous solution bag in another embodiment of the present invention. FIG. 5 is a top view of a liquid medicine container in another embodiment of the present invention. FIG. 6 (a) is a top view showing the vicinity of the folded portion of a liquid medicine container in another embodiment of the present invention, and FIG. 6 (b) is a partial enlarged view of FIG. 6 (a). FIG. 7 (a) is a view showing a state where a plurality of protrusions are again engaged with a plurality of concave portions, and FIG. 7 (b) is a view showing a state where the opening portion is lifted. FIG8 is a diagram showing a state where the folded portion of the liquid medicine container is opened and used as an intravenous solution bag. FIG9(a) is a top view of the liquid medicine container near the folded portion showing another variation of the embodiment, and FIG9(b) is a partial enlarged view of FIG9(a). FIG10(a), FIG10(b) and FIG10(c) are diagrams showing various variations of the cutting line, respectively.

1: Liquid medicine container

3: Sealing part

5: Punching line

7: Opening Department

9: Hanging hole

11: Folding part

11a: Base end

11b: Front end

11c: Fate

13: Punching line

15: Connection part

20: Port

22: Cylindrical part

24: Mouth

28: Sealing material

32a: Containment Room 1

32b: Containment Room No. 2

34: Container body

36: Weak seal part

Claims (10)

A liquid medicine container, comprising: at least two receiving chambers for receiving liquid medicine; a weak sealing portion that separates the receiving chambers and can be peeled off by applying pressure to the receiving chamber from the outside; a folding portion that is provided with a hanging hole and folded toward the receiving chamber; and a sealing portion that fixes the folding portion to the receiving chamber in a state of being folded toward the receiving chamber and covers the hanging hole; and the sealing portion has an opening portion that is configured to cover at least a portion of the hanging hole, and the hanging hole can be opened without being disconnected from the sealing portion when the liquid medicine container is used. As in claim 1, the liquid medicine container, wherein the sealing portion and at least a portion of the edge of the folded portion are subjected to an easy-tear treatment. A liquid medicine container as claimed in claim 1 or 2, wherein the sealing portion covers the periphery of the folded portion on the receiving chamber. A liquid medicine container as claimed in claim 1 or 2, wherein the folded portion has a shape in which the width decreases in the direction away from the receiving chamber. For example, in the liquid medicine container of claim 1 or 2, the above-mentioned opening only covers a portion of the hanging hole. For example, the liquid medicine container of claim 1 or 2, wherein the sealing portion has at least two intersecting cutting lines or lines that have been subjected to an easy-tear treatment at the opening portion. A liquid medicine container as claimed in claim 1 or 2, wherein the folded portion has a shape protruding from the edge of the container body, and the width of the folded portion is smaller than the width of the receiving chamber closest to the folded portion. As in claim 1 or 2, the liquid medicine container, wherein the sealing portion, along at least a portion of the edge extending in a specific direction of the folded portion, is subjected to an easy-tear treatment including a cut line penetrating the sealing portion in the thickness direction, the sealing portion can be cut with the cut line as a boundary into an edge portion joined to the receiving chamber and a cover portion covering the hanging hole, the cut line including a plurality of portions extending in a cross direction intersecting the specific direction, whereby the cover portion has one or a plurality of protrusions protruding in the cross direction. As in claim 8, the liquid medicine container, wherein the cover has a plurality of the protrusions arranged in the specific direction. An intravenous solution bag comprises: a container body having: at least two receiving chambers for receiving liquid medicine; a weak sealing portion for separating the receiving chambers and being peelable by applying pressure to the receiving chambers from the outside; and a folding portion having a hanging hole and protruding from the edge of the container body; and the width of the folding portion is smaller than the width of the receiving chamber closest to the folding portion.