JP2005040415A - Two-liquid mixing bag-like transfusion container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-liquid mixing bag-like transfusion container easily mixing upper liquid and lower liquid by separating to open a center seal part provided almost at the center, when used, and free from a failure to open. <P>SOLUTION: This two-liquid mixing bag-like transfusion container is formed by placing two composite sheets 10 with the innermost layers formed of sealant layers, in an inside facing state to seal all around, boring a hanging hole 22 in an upper edge seal part 16, providing an effusion port 20 in a lower edge seal part 14 and sealing the approximate center part with a strip center seal part 18 connecting right and left side edge seal parts 12. In the two-liquid mixing bag-like transfusion container, the center seal part 18 is formed in angular shape having an apex at the upper part, and when folded almost at the center, the inner surfaces form a spot-like adhesive layer 30a in a position corresponding to the apex 18a of the angular shape. The adhesive strength of the spot-like adhesive layer 30a is larger than that of the center seal part 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a bag-like infusion container in the field of medical packaging, and more particularly to a two-liquid mixing (two-back) type bag-like infusion container, and more particularly, forgetting to perform the opening action of mixing two liquids at the time of use The present invention relates to a two-pack mixed bag-like infusion container having no surface.

  Conventionally, beverage containers, food containers, agricultural chemical containers or medical containers, which were glass bottle containers or rigid plastic bottles, have been reduced in terms of environmental issues in recent years, especially in view of the increase in waste and the depletion of resources. A bag-like container made of a plastic film (composite film) has come to be applied because of the convenience of handling such as reducing the amount of waste and preventing cracking.

As a bag-like container of the medical container, for example, a two-liquid mixed type in which four sides are sealed and sealed at a substantially center, and the upper and lower parts are in a bag shape filled with the first liquid and the second liquid A bag-like infusion container is known. At the time of use, the bag-like infusion container folded in half at the center and stored in the outer box is taken out, and the center seal part at the center is peeled off by pressing the upper and lower bag-like parts. There is a two-liquid mixed type bag-like infusion container that opens, mixes the upper first liquid and the lower second liquid, and drops and administers the mixed liquid (infusion) from the spout at the lower edge seal portion. (For example, refer to Patent Document 1).
However, in the conventional two-component mixed bag-like infusion container described above, when used, the upper and lower content liquid storage portions are strongly pressed to peel off and open the central seal portion at the center. Although it is described in the instruction manual etc. so that the content liquid filled in the container is mixed and then administered dropwise, there is a problem that there are frequent accidents of forgetting to open due to lack of nurses or hard work. It was.

  The present invention solves the problems of the prior art, and the problem is that the two-component mixing bag is sealed in the four directions, sealed in the approximate center, and in a bag shape on the upper and lower sides. It is an object of the present invention to provide a two-liquid mixed bag-like infusion container that is easy to mix an upper liquid and a lower liquid by peeling off and opening the center seal portion at the center in use.

  In order to achieve the above object in the present invention, in the invention of claim 1, two substantially rectangular composite sheets whose innermost layer is a sealant layer are in a bellows state, and their upper and lower and both side edges are sealed. The upper edge seal portion is provided with a suspension hole, the lower edge seal portion is provided with a spout, and the substantially central portion in the vertical direction of the inner surfaces of the two composite sheets has both side edges. In the two-pack mixed bag-like infusion container sealed with a belt-shaped center seal portion that connects the seal portions, the belt-shaped center seal portion that connects the both-side edge seal portions forms a mountain shape with an apex at the top, When folded, the inner surfaces form a spot-like adhesive layer at a position corresponding to the apex of the chevron of the center seal portion, and the adhesive strength of the spot-like adhesive layer is higher than the adhesive strength of the center seal portion. Characterized by being large It is obtained by a two-liquid mixing bag-like infusion container.

According to the first aspect of the present invention, the center seal portion is formed in a mountain shape having a vertex at the upper approximate center, and the inner surfaces are adhered in a spot shape when folded at a position corresponding to the vertex, Since the adhesive strength of the spot-like adhesive layer is greater than the adhesive strength of the center seal part, when using this bag-like infusion container, if you try to peel the spot-like adhesive layer by raising the folded container Before peeling off from the spot-like adhesive layer, the peak of the center seal portion is used as a starting point, and peeling starts from this vertex and peels to the bottom, so that the center seal portion does not have to be peeled off and opened again. A liquid-mixed bag-like infusion container in which liquids are mixed and never forgotten to be opened can be provided.

  According to a second aspect of the present invention, the spot-like adhesive layer is made of a hot melt resin or a double-sided adhesive tape. The two-component mixed bag-like infusion container according to the first aspect is provided.

  According to the invention of claim 2, the spot-like adhesive layer is made of hot melt resin or double-sided pressure-sensitive adhesive tape, so that the adhesive strength of the center seal portion sealed with the sealant layer of the composite sheet is determined. Can be made into an adhesive layer with high adhesive strength, and therefore the center seal part peels off earlier than this adhesive layer during the peeling action during use. be able to.

  Since this invention is the above structure, there exist the following effects.

  That is, in the invention according to claim 1, the two substantially rectangular composite sheets having the innermost layer of the sealant layer are in the state of being aligned with each other, and the upper and lower edges and both side edges are sealed, and the upper edge seal portion is suspended from the upper edge seal portion. A hole for lowering is formed, and a spout is provided in the lower edge seal portion, and a substantially central portion in the vertical direction of the inner surface of the two composite sheets is a belt-like center seal portion connecting both side edge seal portions In the two-pack mixed bag-like infusion container sealed with, the center seal portion has a mountain shape with an apex at the substantially upper center, and the inner surfaces are adhered in a spot shape when folded at a position corresponding to the apex. In addition, since the adhesive strength of the spot-like adhesive layer is larger than the adhesive strength of the center seal portion, when using this bag-like infusion container, the folded container is raised, and the spot-like adhesive layer is Peeling When trying to do so, before peeling off from the spot-like adhesive layer, the peak of the center seal part is the starting point, peeling from this vertex begins to peel to the bottom, and thus the center seal part is peeled off again and not opened. Even if 2 liquids are mixed, the 2 liquid mixing bag-like infusion container which does not forget opening can be provided.

  In the invention according to claim 2, the spot-like adhesive layer is made of a hot melt resin or a double-sided adhesive tape so that the center seal portion sealed with the sealant layer of the composite sheet is adhered. It can be an adhesive layer with higher adhesive strength than strength, so the center seal part peels off earlier than this adhesive layer when peeling off during use. It can be.

  Therefore, the present invention exhibits excellent practical effects as a bag-like infusion container in the medical packaging field, particularly as a two-component mixed (two-back) bag-like infusion container.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  Fig.1 (a) is a front view showing the 2 liquid mixing bag-like infusion container before folding which concerns on this invention, FIG.1 (b) is side sectional drawing showing the BB surface of Fig.1 (a). It is. FIG. 2 (a) is a front view when the two-component mixed bag-like infusion container of the present invention is folded from substantially the center and stored in the outer box, and FIG. 2 (b) is a diagram of FIG. 2 (a). FIG. 3 is a side sectional view showing a B-B plane, and FIG. 3 is a side sectional view showing one state at the time of using the two-liquid mixed bag-like infusion container of the present invention.

  In the present invention, for example, as shown in FIG. 1A, the four sides are sealed, the substantially center is sealed by the center seal portion (18), the first liquid storage portion (40) is at the top, and the first is at the bottom. The present invention relates to a two-pack type two-liquid mixed bag-like infusion container (1) having a two-liquid container (42). The use of the two-liquid mixed bag-like infusion container (1) is the first liquid container (40). The first liquid filled in the second liquid and the second liquid filled in the second liquid storage part (42) are mixed by peeling off the center seal part, and then drilled in the upper edge seal part (16). Two-liquid mixing for suspending and injecting the infusion mixed with two liquids from the spout (20) provided in the lower edge seal part (14), suspended from the suspension device by the suspension hole (22) It is a bag-like infusion container (1).

  As shown in FIG. 1 (a) and FIG. 1 (b) showing the B-B surface of the invention according to the first aspect, first, for example, a substantially rectangular composite sheet (10) in which the innermost layer is a sealant layer, for example. ), The lower edge and both side edges are sealed to form the lower edge seal portion (14) and the left and right side edge seal portions (12).

The lower edge seal portion (16) is sealed and fixed so that the spout (20) for pouring infusion is sandwiched between the lower edges of the two composite sheets (10). The upper edge is provided with a suspension hole (22) substantially in the center. Subsequently, after filling a predetermined amount of the second liquid for infusion from the opening of the upper edge that has not been sealed yet. A band-shaped center seal extending in a mountain shape from the approximate center of one side edge seal portion (12) toward the other side edge seal portion (12) and having a peak apex (18a) in the upper edge direction at the approximate center. Part (18) was applied by heat sealing, and after filling a predetermined amount of the first liquid for infusion from the opening on the upper edge, the upper edge was sealed and the upper part was filled with the first liquid for infusion. A two-liquid mixed bag-like infusion container (1) comprising a first liquid container (40) and a second liquid container (42) filled with a second liquid for infusion in the lower part is used.

  Subsequently, in the invention according to claim 1, the inner surface corresponding to the apex (18a) of the mountain-shaped center seal portion (18) (the front surface in FIG. 1 (a), the upper surface in FIG. 1 (b)). For example, a rectangular adhesive layer (30a) is provided.

  In addition to the quadrangular adhesive layer (30a) provided at the position corresponding to the apex (18a) of the center seal portion (18), the line is a folding line (L1) that is folded up and down to be stored in the outer box. The adhesive layer (30b) having substantially the same shape may be provided at the symmetrical position, and depending on the type of adhesive or the like, the quadrangular adhesive layer (30b) at the line-symmetrical position at the planned folding line (L1). It is good only as well.

  Further, the shape of the adhesive layers (30a, 30b) may be a round shape, a triangular shape, a polygonal shape, etc., and may have any shape as long as it has a certain area and has an adhesive force.

  Furthermore, the two-liquid mixed bag-like infusion container (1) filled with the first liquid and the second liquid and having the spot-like (rectangular) adhesive layer (30a) applied to the inner surface is shown in FIG. ) And a side cross-sectional view of FIG. 2B showing the B-B plane thereof, a rectangular adhesive layer provided at a position corresponding to the apex (18a) of the center seal portion (18) (30a) is the inner side, folded along the planned folding line (L1), and when stored in the outer box (2) as shown in the side sectional view of FIG. 3, a rectangular adhesive layer (30a ), The inner surfaces are bonded together and stored in the outer box (2).

  Thus, in the invention according to claim 1, when the adhesive strength of the quadrangular adhesive layer (30 a) is greater than the adhesive strength of the center seal portion (18) when folded along the planned folding line (L 1). It is a thing.

  Further, the invention according to claim 1 is, for example, as shown in FIGS. 2 (a) and 2 (b), the inner surface of the two-liquid mixed bag-like infusion container (1) when folded along the planned folding line (L1). The rectangular adhesive layer (30a) applied to is made of hot-melt resin or double-sided pressure-sensitive adhesive tape excellent in adhesive strength.

  Examples of the hot melt resin having excellent adhesive strength include ethylene-vinyl acetate copolymer (EVA) that is most widely used at present, and in addition, ethylene-ethyl acrylate copolymer (EEA), polyamide, Polyester and the like can be mentioned as typical ones, and those having a tackiness agent (tackfire) made of rosin and a rosin derivative and the like are used for hot tackiness are used for the formation of this spot-like adhesive layer. For example, in the case where the three sides are sealed (before filling with liquid), a spot-like adhesive layer can be formed by gravure printing or screen printing, but the inner solution is filled. Alternatively, it can be formed with a nozzle-type hot melt applicator.

  In addition, the double-sided pressure-sensitive adhesive tape having excellent adhesive strength is one in which a rubber-based or acrylic pressure-sensitive adhesive is applied to both surfaces of a base material (film or paper). In this case, a spot-like adhesive layer is formed. Can be easily formed by sticking it to a predetermined position even on the inner surface of the two-liquid mixed bag-like infusion container (1) filled with the first liquid and the second liquid and sealed at the lower edge.

  By using the two-component mixed bag-like infusion container (1) having the above-described configuration, for this use, for example, from the outer box (2) as shown in FIG. ), The two-component mixed bag-like infusion container (1) is taken out and the lower edge seal portion (16) is pulled up to raise the two-component mixed bag-like infusion container (1). Starting from the apex (18a) of the center seal part (18) smaller than the rectangular adhesive layer (31a), the exfoliation starts from this apex (18a), and the skirt of the center seal part (18) is peeled off. As shown in the side sectional view of FIG. 1, the first liquid storage part (40) and the second liquid storage part (42) are opened to become one infusion storage part, and the first liquid and the second liquid are naturally mixed, Pull up the lower edge seal (14) more strongly, And peeling heard adhesive layer (31a) is obtained as a flat two-liquid mixing bag-like infusion container (1).

  Therefore, even if there is a nurse shortage or hard work, it is possible to provide a two-liquid mixed bag-like infusion container (1) that does not forget to open the center seal part when used.

  The material etc. which comprise the 2 liquid mixing bag-like infusion container (1) of this invention are demonstrated concretely below.

  First, as the composite sheet (10) of the two-component mixed bag-like infusion container (1), for example, as shown in the side cross-sectional view of FIG. 4, the base film (10a) through the adhesive layer (10b), In general, an intermediate layer (10c) is laminated, and a sealant layer (10e) is laminated in order on the innermost layer via an adhesive layer (10d).

  The base film (10a) constituting the composite sheet (10) is a transparent plastic film, for example, a biaxially stretched polyamide film (nylon) or a biaxially stretched polyester film represented by polyethylene terephthalate (PET). And are used as preferred.

The intermediate layer (10c) constituting the composite sheet (10) is laminated to supplement the strength of the bag-like container or to enhance the gas barrier property.
A barrier film obtained by depositing an inorganic oxide such as aluminum oxide or silicon oxide on a polyethylene terephthalate film of about 2 μm or a biaxially stretched polyamide film (nylon) is preferably used.

  Also, as the adhesive layer (10b) for adhering them and the adhesive layer (10d) for adhering the sealant layer (10e) to the intermediate layer (10c), a polyurethane-based adhesive is generally used. A two-component dry-lamination adhesive that is used by mixing a main component with a hydrating agent and a curing agent having an isocyanate group is used, and the thickness is about 1 to 5 g / m2 (dry) using a gravure coating method. To be applied.

  Furthermore, as the sealant layer (10e) provided in the innermost layer of the composite sheet (10), for example, linear low density polyethylene (LLDPE), low density polyethylene (LDPE), and high density polyethylene (HDPE) that are excellent in heat sealability. ), Polyolefin resins such as unstretched polypropylene (CPP), or ethylene copolymers such as ethylene / vinyl acetate copolymer (EVA), ethylene / acrylic acid copolymer (EAA), and ethylene / methacrylic acid copolymer (EMAA). A resin film may be used, but because it makes a difference in the adhesive strength with the above-mentioned spot-like adhesive layer, these polyolefin resins are composed of polystyrene, polybuden, etc., and incompatible components are mixed with the polyolefin resin. And these polyethylene resins and ethylene / propylene As a film with a thickness of 30~300μm comprising a mixed resin of fat it can also be provided with relatively impart easy peeling property.

  Moreover, as a spout (20) which comprises the 2 liquid mixing bag-like infusion container (1) of this invention, as shown, for example in the perspective view of FIG. 5 (a), and the sectional side view of FIG.5 (b), A columnar shape composed of an outer resin portion (20a) and an inner elastic portion (20b) is generally used. The material used for the inner elastic portion (20b) is made of rubber or elastomer, and this elastic portion ( The infusion solution in which the first liquid and the second liquid are mixed is poured out and dropped through the hollow needle penetrated through 20b).

  Further, as the resin used for the outer resin portion (20a), as shown in FIG. 5 (b), if it is a resin that can be adhered to the sealant layer (10e) of the composite sheet (10) to be sealed thereto, Although not particularly limited, generally, polypropylene having good moldability by injection molding or the like is preferably used. Further, as long as the rubber constituting the elastic portion (20b) can be bonded to the sealant layer (10e), the outer resin portion (20a) may be omitted.

1 shows an embodiment of a two-liquid mixed bag-like infusion container of the present invention, (a) is a front view thereof, and (b) is a side sectional view showing a BB surface of (a). is there. The example at the time of folding the 2 liquid mixing bag-like infusion container of this invention is shown, (a) is the front view, (b) is a sectional side view showing the BB surface of (a). FIG. It is explanatory drawing which represented one Embodiment at the time of using the 2 liquid mixing bag-like infusion container of this invention with the side cross section. It is explanatory drawing which represented the example of the composite sheet which comprises the 2 liquid mixing bag-like infusion container of this invention with the side cross section. The example of the spout which comprises the 2 liquid mixing bag-like infusion container of this invention is shown, (a) is the perspective view, (b) is the sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... 2 liquid mixing bag-like infusion container 2 ... Exterior box 10 ... Composite sheet 10a ... Base film 10b, 10d ... Adhesive layer 10c ... Intermediate layer 10e ... Sealant layer 12 ... Left and right edge Seal part 14 ... Lower edge seal part 16 ... Upper edge seal part 18 ... Center seal part 18a ... Apex of center seal part 20 ... Outlet 20a ... Outer resin part 20b ... Inner elastic part 22 ... Hanging hole 30a ... Adhesive layer 30b located at the apex of the center seal part ... Adhesive layer located symmetrically about the folding line 40 First liquid containing part 42 Second liquid containing part L1 ... Folding line

Claims (2)

  Two substantially rectangular composite sheets, the innermost layer of which is a sealant layer, are sealed together, and the upper and lower edges and both side edges are sealed, and the upper edge seal portion is provided with a suspension hole, and the lower edge seal A two-liquid mixed bag-like infusion solution in which a spout is provided in the part, and a substantially central part in the vertical direction of the inner surfaces of the two composite sheets is sealed by a belt-like center seal part connecting both side edge seal parts In the container, when the band-shaped center seal portion connecting the both-side edge seal portions forms a mountain shape having an apex at the top, and when folded at substantially the center, the inner surfaces correspond to the mountain apexes of the center seal portion A two-liquid mixed bag-like infusion container, wherein a spot-like adhesive layer is formed and the adhesive strength of the spot-like adhesive layer is greater than the adhesive strength of the center seal portion.   2. The two-component mixed bag-like infusion container according to claim 1, wherein the spot-like adhesive layer is made of hot melt resin or double-sided adhesive tape.