JP4317404B2 - Continuous body of outer bag for storing infusion bag and method for manufacturing outer bag for storing infusion bag - Google Patents

Description

  The present invention relates to an outer bag for storing an infusion bag having a gas barrier property for storing and storing an infusion bag in which a medical drug solution is sealed, and a continuous body thereof.

  The container for medical medicinal solution used for infusion is light and has no risk of breakage, and since it is convenient to transport and store, soft plastic bags (infusion bags) are used. As this material, polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or the like is used according to laws and regulations. In addition, these infusion bags are difficult to guarantee the high gas barrier properties (oxygen barrier properties) necessary to prevent the chemical solution from changing. Therefore, when a specific chemical solution (for example, amino acid) is sealed, a separately prepared gas barrier is used. By protecting the inside of the bag in an airtight state by covering it with a pouch (exterior bag) having the property, the chemical solution is prevented from being altered (Patent Documents 1 and 2).

As shown in FIG. 5, the outer bag 10 ′ is formed by sealing three sides of the overlapped gas barrier film. After storing the infusion bag 20 ′ from the opening, the opening is sealed and sealed. The package 1 'is packaged and shipped in a cardboard box 30 so as to be stacked in a plurality of rows, for example.
Utility Model Registration No. 2509993 No. 8-6770

  However, in the above packing form, when the packaging body 1 ′,... Is shaken in the cardboard box 30 ′ due to shaking / impact generated during transportation or handling, the corners of the film are pointed. In addition, since the overlapped films are joined together by a seal and are in a stiff state, there is a possibility that the film surface of the other exterior bag 10 ′ is damaged and a pinhole is generated on the film surface. Thus, the airtightness inside the bag cannot be sufficiently ensured in the distribution process.

  As a countermeasure, a method of forming a round shape by dropping the corner portion of the film as in the case of the exterior bag described in Patent Documents 1 and 2 can be considered. However, according to this method, the corner portion of the film is generated. Since the cut piece may not be completely removed from the product line and may enter the product as a foreign substance, this method should not be used as much as possible in terms of quality control.

  Alternatively, a method of softening the outer bag film itself (for example, changing from a dry laminating method to an extrusion laminating method or using a thin film) can be considered, but it is suitable for an outer bag having an absolute airtightness inside the bag. Therefore, it is difficult to easily change the material of the film.

  Therefore, the present invention has been made in view of the above problems, and does not depend on the method of changing the shape and material of the film, and does not damage the film surface of other exterior bags during transportation or handling. It is an object to provide an outer bag for bag storage and a continuous body thereof.

In order to solve the above-mentioned problems, the continuous body of the outer bag for storing an infusion bag according to the present invention is an outer bag for storing an infusion bag by cutting the overlapped gas barrier film strip along a planned cutting line in the width direction. Is a continuous body of an infusion bag for storing an infusion bag, wherein a plurality of seal portions in the width direction are formed at intervals in the longitudinal direction of the film strip, and the longitudinal direction of the film strip A side seal portion is formed on both sides along the cut line, and the cut of the infusion bag storage outer bag is formed on the longitudinal direction side of the film band when cut along the cut line. The line is displaced with respect to the seal portion in the width direction, and the side seal portion is formed in contact with the outer edge of the film strip, and both end portions in the width direction of the planned cutting line in the side seal portion In the area Wherein the seal portion is formed.

According to the continuum of the infusion bag storage protective bag having the above structure, by cutting along the cutting line, infusion bag storage exterior Ru with a non-seal portion flexibility is applied to the corners of the film A bag can be obtained .

Further, the method for manufacturing an outer bag for storing an infusion bag according to the present invention is set so that the continuous body of the outer bag for storing an infusion bag crosses a non-sealed portion formed on a side seal portion of the continuous body. The continuous body is cut in the width direction along the planned cutting line .

  As described above, according to the present invention, the corner region of the film is in a state where the overlapped film is not joined, and the corner portion of the film includes a non-seal portion to which flexibility is imparted. This prevents the corners of the film from damaging the film surface of other outer packaging bags during transportation or handling and causing pinholes on the film surface. Therefore, the airtightness inside the bag is improved in the distribution process.

  In addition, unlike the method of rounding by dropping the corners of the film, there is no cut piece, so it is excellent in terms of quality control, and the time and cost required to find a suitable film material are also unnecessary. Therefore, the cost performance is very good.

  Hereinafter, an embodiment of an infusion bag storing outer bag (simply referred to as “outer bag”) according to the present invention will be described with reference to FIGS. 1 and 2.

  The outer bag 10 is made of a gas barrier film made of a laminated film in which a gas barrier resin layer and a heat-fusible resin layer are laminated, and a pair of the outer bag 10 with the heat-fusible resin layer on the inner surface side. The side and lower three sides of the film are heat sealed to form a bag.

  Of the three-way seal 11 for defining the internal space of the outer bag 10, the side seal portion is formed in contact with the outer edge of the film, and the lower seal portion is formed inward from the outer edge of the film. In other words, the lateral outer edge of the film does not extend outward from the lateral seal portion, and the lower outer edge of the film extends outward from the downward seal portion.

  Moreover, the exterior bag 10 is provided with the non-seal | sticker part (margin part) 12 in the corner | angular part of a film. Specifically, by removing the corner area and heat-sealing the side and lower three sides of the film so that the two films in the corner area of the film are not joined, a non-sealed portion is formed at the corner of the film. 12 is formed. The non-seal portion 12 has a substantially square shape, and in the present embodiment, the non-seal portion 12 has a square shape in which the width size in the vertical direction and the horizontal direction is set in a range of about 30% to 70% of the width size of the side seal portion. is there.

  On the other hand, the infusion bag 20 is mainly composed of a bag main body 21 made of a polyethylene film as a main material and formed into a tube shape by an inflation method, and the film is sealed by sandwiching the film between the films. 21 is provided with a spout 22 for connecting a medicine liquid pouring tool integrated with 21. In the present embodiment, a pair of the plugs 22 are provided at two locations, the top portion and the bottom portion of the bag body 21. And one (for example, the bottom side) may be provided with a suspension part for hanging the infusion bag 20 in the opposite posture.

  In addition, the infusion bag 20 is sealed so that the intermediate position of the bag main body 21 can be separated in order to partition the internal space of the bag main body 21 at the intermediate position between the top and the bottom. An amino acid is enclosed, and physiological saline is enclosed in the other internal space.

  And after the infusion bag 20 which enclosed the chemical | medical solution is accommodated in the exterior bag 10, the opening above the exterior bag 10 is sealed by heat seal, and the package 1 is completed (refer FIG. 2). In addition, the internal space atmosphere of the outer bag 10 is subjected to a replacement treatment with nitrogen gas or the like when sealing the upper opening, and an oxygen scavenger is enclosed to maintain the inside of the outer bag 10 in a substantially oxygen-free state. Is done.

  On the other hand, when the infusion bag 20 is taken out, it is torn and opened laterally using the notch 14 formed in the side seal portion of the outer bag 10. Incidentally, the notch 14 is a linear cut formed in the vicinity of the seal portion 13 for sealing the opening, and is not cut into the outer edge of the film so as not to be easily operated.

  The partition seal portion formed in the infusion bag 20 is a weak seal portion having lower adhesive strength than the peripheral seal portion. If an external pressure is applied to the bag body 21, the internal pressure of the bag body 21 is increased. As a result, the pair of films in the weak seal portion are peeled off, and the two liquids are mixed and can be used.

  Next, the manufacturing method of the exterior bag 10 which concerns on this embodiment is demonstrated based on FIG.

  First, after the film strips that are the basis of the film of the outer bag 10 are unwound from the original fabric rolls 10A and 10B and overlapped with each other, a pair of heat seal bars 40 and 40 arranged vertically are brought into contact with each other to heat seal. To do. The heat seal bar 40 includes a portion 40a corresponding to the both-side seal portion of the outer bag 10 and a portion 40b corresponding to the lower seal portion of the outer bag 10. In this embodiment, first, the outer bag 10 The side of the film band is heat sealed by heat seal bars (vertical heat seal bars) 40a, 40a corresponding to both side seal portions, and then the heat seal bar (lateral heat) corresponding to the lower seal portion of the outer bag 10 The width direction of the film strip is heat-sealed by the seal bars 40b and 40b.

  In addition, the respective contact surfaces of the heat seal bars 40a, 40a are formed with recesses 40c corresponding to the non-seal portion 12 of the outer bag 10, and the heat seal bars 40a, 40a contact each other to form the recesses 40c, 40c. The regions facing each other are not heat sealed. In the present embodiment, the non-seal part 12 below one exterior bag 10 and the non-seal part 12 above the next exterior bag 10 are continuous. The form which the non-seal part 12 above the outer bag 10 and the non-seal part 12 below of the exterior bag 10 leave | separate may be sufficient.

  And the continuous body of the said exterior bag 10 cuts along the cutting projected line S in a downstream process, and each cut matter turns into the exterior bag 10. FIG. That is, if the continuous body is cut in the width direction along the planned cutting line S set so as to cross the non-sealed portions 12 and 12 of the continuous body, the outer edge of the film of one exterior bag 10 and the adjacent exterior bag Each outer bag 10 is obtained by separating the outer edges of the ten films.

  After the infusion bag 20 is accommodated from the upper opening, the obtained outer bag 10 is provided with a sealing portion 13 for opening sealing at a position below the upper non-sealing portion 12, and the package of the infusion bag 20 It becomes.

  In addition, when not performing the cutting process after the manufacturing process of the continuous body, the continuous body will be temporarily wound up and stored, but the side seal portion of the continuous body is located on the side of the film strip. Since it is formed in contact with the outer edge, it is possible to stably wind up the continuous body, and it is possible to stably feed out the continuous body wound up in a roll shape when cutting.

  Thus, the exterior bag 10 which concerns on this embodiment is equipped with the non-seal part 12 in each of the four corner | angular parts of a film. And in the non-seal part 12, since the overlap | superposed film is the state which is not joined, a softness | flexibility is maintained without hardening by heat seal, Therefore, the film surface of the other exterior bag 10 is damaged, and this film There is no pinhole on the surface.

  In addition, the exterior bag which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, in the above-described embodiment, the non-seal portion of the continuous body has a substantially rectangular shape, but may have a semicircular shape, a triangular shape, or other shapes. Moreover, in the said embodiment, the non-seal part of a continuous body is formed more narrowly than the side seal part of a continuous body, Therefore A side seal part has the continuity along the longitudinal direction of a continuous body. Although it becomes a form to maintain, the form by which a side seal part is parted by a non-seal part by making a non-seal part into the same width as a side seal part may be sufficient. However, if this is the case, the side seal part is discontinuous, and the bag interior and exterior communicate with each other via the non-seal part. Care must be taken not to penetrate.

  Moreover, in the said embodiment, although the opening of the exterior bag 10 is formed along the direction orthogonal to the longitudinal direction of a continuous body, as shown in FIG. 4, an opening is formed along the longitudinal direction of a continuous body. It may be a thing. In this case, the lower seal portion of the outer bag 10 is formed by the vertical heat seal bar, and the side seal portion of the outer bag 10 is formed by the horizontal heat seal bar.

  In the present invention, the heat sealing method is not limited. Therefore, as in the above-described embodiment, the heat seal bar 40 is not separately sealed in the lateral direction and the width direction. For example, the heat seal bar 40 in which the vertical heat seal bar 40a and the horizontal heat seal bar 40b are integrated in a substantially U shape. You may make it heat-seal the side and width direction of a film strip simultaneously. Moreover, the seal in the width direction does not have to be a right angle direction, and may be an oblique direction. In addition, if it is a seal | sticker of the diagonal direction, the exterior bag 10 will become trapezoid shape, for example.

  In addition, as the material film of the outer bag 10, various single-layer films or laminated films having gas barrier properties and heat-sealing properties can be appropriately used. Strong biaxially stretched nylon film (for example, 25 μm thick), ethylene / vinyl alcohol copolymer resin layer (for example, 15 μm) with gas barrier properties for the intermediate layer, and linear low-temperature with heat-fusible for the inner layer You may use the laminated film etc. which are made into a density polyethylene film (for example, 40-60 micrometers).

  Moreover, in the said embodiment, although the two liquids are isolate | separated, it is enclosed with the infusion bag 20, However, The single chemical | medical solution may be enclosed with the infusion bag 20 in this invention. Further, even in the two-liquid separation type, as in the above embodiment, the infusion bag 20 is not folded and stored so that the partition seal portion faces downward, but is not folded. You may make it accommodate (refer FIG. 5).

  Moreover, in the said embodiment, although the inner width of the exterior bag 10 is substantially the same, you may form so that the inner edge of a right and left side seal part may mutually approach toward the downward direction. In this case, the inner width of the inside of the bag at the bottom is narrowed within a range in which the infusion bag 20 can be stored. As a result, the bottom of the infusion bag 20 stored inside is narrower than the outer bag 10. It is held and restrained by the area, and a stable storage posture is given.

  Moreover, in the said embodiment, although the tubular film formed by the inflation method is used for the bag main body 21 of the infusion bag 20, for example, a polyethylene film is used as a raw material, and the peripheral portions of the two overlapped films are used. The bag body may be formed by sealing each as an adhesive allowance, or formed by blow molding.

The front view of the exterior bag which concerns on this embodiment is shown. The front view of the state which accommodated the infusion bag in the exterior bag which concerns on the embodiment, and sealed the opening is shown. The schematic perspective view of the manufacturing process of the exterior bag which concerns on the embodiment is shown. The partial top view of the continuous body of the exterior bag which concerns on other embodiment is shown. The infusion bag is accommodated in the conventional exterior bag, the opening is sealed, the package is obtained, and the explanatory view of the work procedure until it is packed is shown.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Exterior bag, 11 ... Three-way seal, 12 ... Non-seal part, 13 ... Seal part, 14 ... Notch, 20 ... Infusion bag, 21 ... Bag body, 22 ... Mouth plug, 40 ... Heat seal bar, 40a ... Side Seal part, 40b ... Lower seal part, 40c ... Recess, S ... Planned cutting line

Claims (2)

It is a continuum of an infusion bag storage outer bag in which an outer bag for storing an infusion bag is obtained by cutting the overlapped gas barrier film strip along a cut line in the width direction,
In the film strip, a plurality of seal portions in the width direction are formed at intervals in the longitudinal direction, and side seal portions are formed on both sides along the longitudinal direction of the film strip,
When cutting along the planned cutting line, the planned cutting line is displaced with respect to the seal part in the width direction so that an opening of the outer bag for storing the infusion bag is formed on the longitudinal side of the film band. And
It said lateral seal portions together are formed in contact with the outer edge of the filmstrip, infusion bag store, wherein Rukoto non-sealing portion is formed in the widthwise end regions of the cutting line in the side seal section A continuous body of exterior bags. A continuous body of the outer bag for storing an infusion bag according to claim 1 is cut in a width direction along a planned cutting line set so as to cross a non-sealed portion formed in a side seal portion of the continuous body. A method for producing an outer bag for storing an infusion bag.