JP2010273934A - Medical container, method for manufacturing medical container, and method for manufacturing medical container containing transfusion - Google Patents

Medical container, method for manufacturing medical container, and method for manufacturing medical container containing transfusion Download PDF

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Publication number
JP2010273934A
JP2010273934A JP2009130619A JP2009130619A JP2010273934A JP 2010273934 A JP2010273934 A JP 2010273934A JP 2009130619 A JP2009130619 A JP 2009130619A JP 2009130619 A JP2009130619 A JP 2009130619A JP 2010273934 A JP2010273934 A JP 2010273934A
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Prior art keywords
infusion
container
medical container
medical
sealing
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JP5449864B2 (en
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Kazuhiro Umenaka
一博 梅中
Yohei Kageyama
陽平 蔭山
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Hosokawa Yoko KK
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Hosokawa Yoko KK
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Priority to JP2009130619A priority Critical patent/JP5449864B2/en
Priority to PCT/JP2010/003595 priority patent/WO2010137338A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/10—Bag-type containers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1412—Containers with closing means, e.g. caps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1462—Containers with provisions for hanging, e.g. integral adaptations of the container
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1493—Containers with shape retaining means, e.g. to support the structure of the container during emptying or filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/844—Applying rigid valves, spouts, or filling tubes

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  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical container that is self-supporting with less possibility of leak, and a manufacturing method in which the medical container can be simply obtained. <P>SOLUTION: The medical container includes a container body 10 having a transfusion containing part 11 and a bottom seal part 12, and a mouth member 20 liquid-tightly installed on top of the container body 10. The transfusion containing part 11 is folded in such a way that inner surfaces of both side edges 11a of the transfusion containing part 11 are brought into contact with an inner surface of a bottom edge 11b, with their contact parts 11c heat-sealed to fix the folded state for forming a bottom surface 14. The method for manufacturing the medical container 1 and the method for manufacturing the medical container as the medical container containing transfusion are also provided. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、医療用容器、医療用容器の製造方法、及び輸液入り医療用容器の製造方法に関する。   The present invention relates to a medical container, a method for manufacturing a medical container, and a method for manufacturing a medical container with infusion.

輸液の点滴には、ガラス瓶、合成樹脂をブロー成形して得られるブロー容器、可撓性フィルムを用いた医療用容器が用いられている。ガラス瓶及びブロー容器は、自立性を有するものの可撓性に乏しく、一定の点滴速度を確保するには容器内に空気を導入するための通気針を必要とするため、輸液の汚染のおそれがある。これに対して、可撓性フィルムを用いた医療用容器は、通気針が不要で一定の点滴速度を確保することが可能である。可撓性フィルムを用いた医療用容器は、輸液を収容する可撓性フィルムからなる容器本体と、該容器本体から輸液を取り出す口部材と、該容器本体を懸架する懸架孔とを有する医療用容器であり、広く用いられている。しかし、該医療用容器は自立性を有していなかった。そのため、使用前の準備においては該医療用容器を倒した状態で机上等に置いていたことから、場所を広く取るうえ机上等が雑然として作業の混乱を招く要因となることがあった。また、該医療用容器の保管にも場所を取っていた。   A glass bottle, a blow container obtained by blow molding a synthetic resin, and a medical container using a flexible film are used for infusion of an infusion solution. Although glass bottles and blow containers are self-supporting, they are inflexible and require a venting needle to introduce air into the container in order to ensure a constant drip rate, which may cause contamination of the infusion solution. . In contrast, a medical container using a flexible film does not require a ventilation needle and can ensure a constant drip rate. A medical container using a flexible film has a container body made of a flexible film that contains an infusion solution, a mouth member that takes out the infusion solution from the container body, and a suspension hole that suspends the container body. It is a container and is widely used. However, the medical container was not self-supporting. For this reason, in preparation for use, since the medical container was placed on a desk or the like in a state of being tilted, a large space may be taken up and the desk or the like may be cluttered, which may be a factor causing work confusion. In addition, the medical container has been saved.

そこで、自立性を付与した可撓性フィルムを用いた医療用容器として、特許文献１には、図１２（Ａ）に示すように、輸液収容部１１０と、輸液収容部１１０の上端に備えられた輸液口１２０と、輸液収容部１１０の底部１１１に備えられたスカート部１３０とを有する医療用容器１０１が示されている。
医療用容器１０１では、輸液収容部１１０の底部１１１から筒状のスカート部１３０が形成されていることにより、自立性が付与されている。また、スカート部１３０には懸架孔１３１が設けられており、点滴の際には該懸架孔１３１をフックに引っ掛けて使用する。 Therefore, as a medical container using a flexible film imparted with self-supporting property, as shown in FIG. 12 (A), Patent Document 1 is provided with an infusion containing portion 110 and an upper end of the infusion containing portion 110. A medical container 101 having an infusion port 120 and a skirt portion 130 provided on the bottom 111 of the infusion storage portion 110 is shown.
In the medical container 101, the cylindrical skirt portion 130 is formed from the bottom portion 111 of the infusion storage portion 110, so that self-supporting property is imparted. Further, the skirt portion 130 is provided with a suspension hole 131, and the suspension hole 131 is used by being hooked on a hook when drip.

実開平５−７６４１号公報Japanese Utility Model Publication No. 5-7641

しかし、特許文献１の医療用容器１０１では、スカート部１３０のヒートシールが不充分となり、液漏れが生じるおそれがあった。すなわち、医療用容器１０１では、図１２（Ｂ）に示すように、スカート部１３０を形成する際、輸液収容部１１０を形成する外側の可撓性フィルム１０２と、輸液収容部１１０の底部１１１を形成する内側の可撓性フィルム１０３とが、シール部１３０ａ及び１３０ｂでヒートシールされる。このヒートシールでは、可撓性フィルム１０３を折り込んだ部分に平板状の治具１４０を挿入してヒートシールするが、フィルムが４枚重なった状態であるために、シール部１３０ａのヒートシールが不充分になって、輸液収容部１１０の輸液が液漏れするおそれがあった。
そのため、自立性を有し、かつ液漏れのおそれの少ない医療用容器が必要である。 However, in the medical container 101 of Patent Document 1, heat sealing of the skirt portion 130 becomes insufficient, and there is a possibility that liquid leakage occurs. That is, in the medical container 101, as shown in FIG. 12B, when the skirt portion 130 is formed, the outer flexible film 102 that forms the infusion solution storage portion 110 and the bottom portion 111 of the infusion solution storage portion 110 are provided. The inner flexible film 103 to be formed is heat-sealed by the seal portions 130a and 130b. In this heat sealing, a flat jig 140 is inserted into the folded portion of the flexible film 103 for heat sealing. However, since the four films overlap each other, the heat sealing of the sealing portion 130a is not possible. There was a risk that the infusion in the infusion container 110 would leak and the liquid would leak.
Therefore, there is a need for a medical container that is self-supporting and has a low risk of liquid leakage.

そこで本発明では、自立性を有し、液漏れのおそれが少なく、点滴速度が安定した医療用容器、該医療用容器の製造方法及び輸液入り医療用容器の製造方法を提供することを目的とする。   Accordingly, an object of the present invention is to provide a medical container that is self-supporting, has a low risk of liquid leakage, and has a stable drip rate, a method for manufacturing the medical container, and a method for manufacturing a medical container with infusion. To do.

本発明の医療用容器は、輸液を収容する袋状の輸液収容部、及び該輸液収容部の底部を密封する底部シール部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを備えた医療用容器であって、前記輸液収容部が、前記輸液収容部の両方の側縁の内面と底縁の内面とが接触するように折り込まれ、ヒートシールによりその折り込まれた状態で固定されていることを特徴とする容器である。
また、本発明の医療用容器は、前記底部シール部が前記輸液収容部の外面に溶着されていることが好ましい。
また、前記底部シール部の幅方向における中央部に対して対称な位置に、前記容器本体を懸架する２つの懸架孔が設けられていることが好ましい。
また、前記底部シール部に、前記底部シール部の２つの前記懸架孔を揃えて固定する固定部が設けられていることが好ましい。 The medical container of the present invention is a liquid-tightly attached to a container main body having a bag-shaped infusion containing portion for containing an infusion, a bottom seal portion for sealing the bottom of the infusion containing portion, and an upper portion of the container main body, A medical container comprising a mouth member for discharging the infusion in the infusion storage section, such that the inner surface of both side edges and the inner surface of the bottom edge of the infusion storage section are in contact with each other. A container that is folded and fixed in a folded state by heat sealing.
In the medical container of the present invention, it is preferable that the bottom seal portion is welded to the outer surface of the infusion storage portion.
Moreover, it is preferable that two suspension holes for suspending the container main body are provided at positions symmetrical with respect to the center portion in the width direction of the bottom seal portion.
Moreover, it is preferable that the bottom seal portion is provided with a fixing portion that aligns and fixes the two suspension holes of the bottom seal portion.

また、本発明の医療用容器の製造方法は、前記医療用容器の製造方法であって、輸液を収容する袋状の輸液収容部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを有する容器の前記輸液収容部を、前記輸液収容部の両側の側縁の内面と底縁の内面とが接触するように折り込んだときの前記輸液収容部の断面形状と同様の断面形状を有する枠体の内部に挿入する枠体挿入工程と、前記容器本体の前記輸液収容部に気体を送入する気体送入工程と、前記枠体挿入工程及び気体送入工程の後、前記枠体により、前記輸液収容部の両方の側縁の内面と底縁の内面とが接触するように前記輸液収容部を折り込み、ヒートシールによりその折り込んだ状態で固定するシール工程と、を有する方法である。   The method for manufacturing a medical container according to the present invention is a method for manufacturing the medical container, wherein the container main body has a bag-shaped infusion storage portion for storing the infusion solution, and the container main body is liquid-tightly attached to the upper portion of the container main body. The infusion container of the container having a mouth member for discharging the infusion in the infusion container is folded so that the inner surface of the side edge on both sides of the infusion container and the inner surface of the bottom edge are in contact with each other A frame body inserting step of inserting into a frame body having a cross-sectional shape similar to the cross-sectional shape of the infusion storage portion, a gas infeeding step of feeding gas into the infusion solution storage portion of the container body, and the frame body After the insertion step and the gas feeding step, the infusion container is folded by the frame so that the inner surfaces of both side edges and the bottom edge of the infusion container are in contact with each other, and then folded by heat sealing. A sealing process for fixing in a state It is.

また、本発明の輸液入り医療用容器の製造方法は、前記医療用容器に輸液が収容された輸液入り医療用容器の製造方法であって、輸液を収容する袋状の輸液収容部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを有する容器の前記輸液収容部を、輸液を充填して膨らませる輸液充填工程と、前記輸液収容部の両方の側縁の内面と底縁の内面とが接触するように前記輸液収容部を折り込み、ヒートシールによりその折り込んだ状態で固定するシール工程と、口部材に封をする封止工程と、を有する方法である。   The method for producing a medical container with infusion according to the present invention is a method for producing a medical container with infusion in which the infusion is accommodated in the medical container, the container having a bag-like infusion container that accommodates the infusion An infusion filling step of filling and inflating the infusion containing portion of the container having a main body and a mouth member attached to the upper portion of the container main body and having a mouth member for discharging the infusion in the infusion containing portion; The infusion container is folded so that the inner surface of both side edges of the infusion container and the inner surface of the bottom edge are in contact with each other, and a sealing process for fixing in the folded state by heat sealing, and sealing for sealing the mouth member And a process.

本発明の医療用容器は、自立性を有しており、かつ液漏れのおそれが少なく、点滴速度が安定している。
また、本発明の医療用容器の製造方法によれば、自立性を有し、かつ液漏れのおそれが少なく、点滴速度が安定した医療用容器が得られる。
また、本発明の輸液入り医療用容器の製造方法によれば、自立性を有し、かつ液漏れのおそれが少なく、点滴速度が安定した輸液入り医療用容器が得られる。 The medical container of the present invention is self-supporting, has a low risk of liquid leakage, and has a stable infusion rate.
In addition, according to the method for producing a medical container of the present invention, a medical container that is self-supporting and has a low risk of liquid leakage and a stable drip rate can be obtained.
Further, according to the method for producing a medical container with infusion of the present invention, a medical container with infusion having a self-supporting property and less risk of liquid leakage and having a stable drip rate can be obtained.

本発明の医療用容器の実施形態の一例を示した斜視図である。It is the perspective view which showed an example of embodiment of the medical container of this invention. 図１の医療用容器の前駆体である容器前駆体を示した斜視図である。It is the perspective view which showed the container precursor which is a precursor of the medical container of FIG. 図１の医療用容器を懸架した様子を示した斜視図である。It is the perspective view which showed a mode that the medical container of FIG. 1 was suspended. 本発明の医療用容器の他の実施形態例を示した斜視図である。It is the perspective view which showed other embodiment examples of the medical container of this invention. 本発明の医療用容器の他の実施形態例を示した斜視図である。It is the perspective view which showed other embodiment examples of the medical container of this invention. 本発明の医療用容器の他の実施形態例を示した斜視図である。It is the perspective view which showed other embodiment examples of the medical container of this invention. 本発明の医療用容器の他の実施形態例を示した斜視図である。It is the perspective view which showed other embodiment examples of the medical container of this invention. 本発明の医療用容器を製造する工程を示した図である。It is the figure which showed the process of manufacturing the medical container of this invention. 本発明の医療用容器を製造する工程を示した図である。It is the figure which showed the process of manufacturing the medical container of this invention. 従来の医療用容器の一例を示した斜視図である。It is the perspective view which showed an example of the conventional medical container. 実施例１で用いた容器前駆体を示した斜視図である。1 is a perspective view showing a container precursor used in Example 1. FIG. 従来の医療用容器の一例を示した斜視図（Ａ）及びその断面図（Ｂ）である。It is the perspective view (A) which showed an example of the conventional medical container, and its sectional drawing (B). 本実施例における点滴速度の測定結果を示したグラフである。It is the graph which showed the measurement result of the drip speed in a present Example.

［医療用容器］
本発明の医療用容器は、輸液を収容する袋状の輸液収容部、及び該輸液収容部の底部を密封する底部シール部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを備えた医療用容器である。また、本発明の医療用容器は、前記輸液収容部が、前記輸液収容部の両方の側縁の内面と、該輸液収容部の底縁の内面とが接触するように折り込まれ、ヒートシールによりその折り込まれた状態で固定されていることを特徴とする。
以下、本発明の医療用容器の実施形態の一例を示して詳細に説明する。図１は、本発明の医療用容器の一実施形態例を示した斜視図である。図２は、図１の医療用容器における、輸液収容部を折り込んだ状態でヒートシールする前の状態である容器前駆体を示した斜視図である。 [Medical container]
The medical container of the present invention is a liquid-tightly attached to a container main body having a bag-shaped infusion containing portion for containing an infusion, a bottom seal portion for sealing the bottom of the infusion containing portion, and an upper portion of the container main body, It is a medical container provided with the opening member which discharges | emits the infusion in the said infusion solution accommodating part. In the medical container of the present invention, the infusion container is folded so that the inner surfaces of both side edges of the infusion container and the inner surfaces of the bottom edges of the infusion container are in contact with each other. It is fixed in the folded state.
Hereinafter, an exemplary embodiment of the medical container of the present invention will be described in detail. FIG. 1 is a perspective view showing an embodiment of the medical container of the present invention. FIG. 2 is a perspective view showing the container precursor in the medical container of FIG. 1 in a state before heat-sealing in a state where the infusion container is folded.

本実施形態の医療用容器１は、図１に示すように、容器本体１０と、輸液を排出する口部材２０とを有している。容器本体１０は、輸液を収容する袋状の輸液収容部１１と、輸液収容部１１の底部を密封している底部シール部１２とから構成されている。   The medical container 1 of this embodiment has the container main body 10 and the opening member 20 which discharges infusion solution, as shown in FIG. The container main body 10 includes a bag-shaped infusion storage portion 11 that stores an infusion solution, and a bottom seal portion 12 that seals the bottom portion of the infusion solution storage portion 11.

医療用容器１では、輸液収容部１１の両方の側縁１１ａの内面が、輸液収容部１１の底縁１１ｂと接触するように折り込まれ、その重ね合わされた接触部分１１ｃの基端をヒートシールしてヒートシール部１３が形成されることで、折り込まれた状態で固定されている。また、これにより底面１４が形成されている。
すなわち、図２に示す容器前駆体１Ａにおいて、輸液収容部１１が、輸液収容部１１の両方の側縁１１ａ上の点αの内面が底縁１１ｂの内面と接触するように内側に折り込まれる。これにより、図１に示すように、輸液収容部１１の内面同士が接触し、張り出した三角形の接触部分１１ｃが形成され、該接触部分１１ｃの一部がヒートシールされてヒートシール部１３が形成され、輸液収容部１１の底に底面１４が形成される。
医療用容器１は、自重を底面１４で支えることができるようになるため、特別な器具を用いることなく立てた状態で置くことができる。さらに、内容物充填後は内容物の自重により医療用容器１の底部が膨らむため、より安定した自立性が得られる。 In the medical container 1, the inner surfaces of both side edges 11a of the infusion storage section 11 are folded so as to contact the bottom edge 11b of the infusion storage section 11, and the base end of the overlapped contact portion 11c is heat sealed. By forming the heat seal portion 13, the heat seal portion 13 is fixed in a folded state. This also forms the bottom surface 14.
That is, in the container precursor 1A shown in FIG. 2, the infusion storage part 11 is folded inward so that the inner surfaces of the points α on both side edges 11a of the infusion storage part 11 are in contact with the inner surfaces of the bottom edge 11b. Thereby, as shown in FIG. 1, the inner surfaces of the infusion storage part 11 are in contact with each other to form a protruding triangular contact part 11 c, and a part of the contact part 11 c is heat-sealed to form a heat seal part 13. Then, a bottom surface 14 is formed at the bottom of the infusion storage portion 11.
Since the medical container 1 can support its own weight on the bottom surface 14, it can be placed in a standing state without using a special instrument. Furthermore, since the bottom of the medical container 1 swells due to the weight of the contents after filling the contents, a more stable self-supporting property can be obtained.

輸液収容部１１の底面１４は、輸液収容部１１の幅方向の両側に形成されたヒートシール部１３、１３によって対向する二辺が形成されてなる面であり、その形状は医療用容器１が充分な自立性を有する形状であればよい。この例では、ヒートシール部１３が平行に形成され、矩形状の底面１４が形成されている。底面１４の形状は、接触部分１１ｃにおけるヒートシール部１３を形成する方向により適宜調整することができる。なお、ヒートシール部１３、１３を平行とせず底面１４を台形等としてもよい。   The bottom surface 14 of the infusion storage part 11 is a surface formed by two opposite sides formed by the heat seal parts 13 and 13 formed on both sides in the width direction of the infusion storage part 11, and the shape thereof is that of the medical container 1. Any shape having sufficient self-supporting property may be used. In this example, the heat seal portion 13 is formed in parallel, and a rectangular bottom surface 14 is formed. The shape of the bottom surface 14 can be appropriately adjusted depending on the direction in which the heat seal portion 13 is formed in the contact portion 11c. The heat seal portions 13 and 13 may not be parallel, and the bottom surface 14 may be trapezoidal or the like.

また、底面１４の面積は、医療用容器１が充分な自立性を有する面積であればよい。
底面１４の面積は、底縁１１ｂの両端１１ｄからヒートシール部１３までの距離ｂ１、ｂ２を調整することにより調整することができる。
距離ｂ１と、底縁１１ｂの長さｃとの比ｂ１／ｃは、０．２０〜０．４０であることが好ましく、０．２６〜０．３４であることが好ましい。比ｂ１／ｃが前記範囲内であれば、底面１４の面積が充分に大きくなって医療用容器１がより安定に自立できる。
距離ｂ２と、底縁１１ｂの長さｃとの比ｂ２／ｃは、０．２０〜０．４０であることが好ましく、０．２６〜０．３４であることが好ましい。比ｂ２／ｃが前記範囲内であれば、底面１４の面積が充分に大きくなって医療用容器１がより安定に自立できる。
また、距離ｂ１とｂ２は、医療用容器１の自立の安定性の点から、同じであることが好ましい。 Moreover, the area of the bottom face 14 should just be an area where the medical container 1 has sufficient self-supporting property.
The area of the bottom surface 14 can be adjusted by adjusting the distances b 1 and b 2 from both ends 11d of the bottom edge 11b to the heat seal portion 13.
The ratio b 1 / c between the distance b 1 and the length c of the bottom edge 11b is preferably 0.20 to 0.40, and preferably 0.26 to 0.34. If the ratio b 1 / c is within the above range, the area of the bottom surface 14 becomes sufficiently large, and the medical container 1 can stand up more stably.
The ratio b 2 / c between the distance b 2 and the length c of the bottom edge 11b is preferably 0.20 to 0.40, more preferably 0.26 to 0.34. If the ratio b 2 / c is within the above range, the area of the bottom surface 14 is sufficiently large, and the medical container 1 can stand up more stably.
The distances b 1 and b 2 are preferably the same from the standpoint of the self-supporting stability of the medical container 1.

また、医療用容器１では、図１に示すように、接触部分１１ｃの内側の部分に輸液収容部１１内の輸液が侵入しないようにヒートシール部１３を端から端まで形成し、接触部分１１ｃが輸液収容部１１から隔離されるようになっている。このように接触部分１１ｃが輸液収容部１１から隔離されるようにヒートシールすれば、接触部分１１ｃに輸液が残って最後まで点滴が行えなくなることを防止しやすくなる点で好ましい。   Moreover, in the medical container 1, as shown in FIG. 1, the heat seal part 13 is formed from the end to the end so that the infusion in the infusion containing part 11 does not enter the inner part of the contact part 11c, and the contact part 11c. Is isolated from the infusion storage part 11. Heat sealing so that the contact portion 11c is isolated from the infusion storage section 11 is preferable in that it is easy to prevent the infusion from remaining in the contact portion 11c and preventing the infusion from being performed to the end.

また、医療用容器１は、ヒートシール部１３をヒートシールする際、底部シール部１２を同時にヒートシールして、底部シール部１２の表面と輸液収容部１１の外面との接触部分が溶着されていることが好ましい。これにより、底部シール部１２によって医療用容器１を支える部分がより大きくなるため、医療用容器１の自立安定性が向上する。   Moreover, when the medical container 1 heat seals the heat seal part 13, the bottom seal part 12 is heat sealed simultaneously, and the contact part of the surface of the bottom seal part 12 and the outer surface of the infusion storage part 11 is welded. Preferably it is. Thereby, since the part which supports the medical container 1 by the bottom part seal | sticker part 12 becomes larger, the self-supporting stability of the medical container 1 improves.

医療用容器１は、底部シール部１２の幅方向における中央部に対して対称な位置に、容器本体１０を懸架する２つの懸架孔を有していることが好ましく、本実施形態のように底部シール１２の両端に２つの懸架孔１５ａ、１５ｂが設けられていることがより好ましい。このような２つの懸架孔１５ａ、１５ｂが設けられていれば、図３に示すように、それら懸架孔１５ａ、１５ｂが揃うように容器本体１０の底部側を折り畳み、懸架孔１５ａ、１５ｂにフック３０を引っ掛けて使用することができる。このようにして医療用容器１を懸架すると、容器本体１０の輸液収容部１１における底部シール部１２側が窄まった状態となる。そのため、輸液収容部１１の容積が小さくなって内圧が充分に高められ、口部材２０からの輸液の排出速度がより安定になる。   The medical container 1 preferably has two suspension holes for suspending the container main body 10 at positions symmetrical with respect to the central portion in the width direction of the bottom seal portion 12, and the bottom portion as in this embodiment. More preferably, two suspension holes 15 a and 15 b are provided at both ends of the seal 12. If such two suspension holes 15a and 15b are provided, as shown in FIG. 3, the bottom side of the container body 10 is folded so that the suspension holes 15a and 15b are aligned, and the suspension holes 15a and 15b are hooked. 30 can be hooked and used. When the medical container 1 is suspended in this manner, the bottom seal portion 12 side of the infusion storage portion 11 of the container main body 10 is in a narrowed state. Therefore, the volume of the infusion storage portion 11 is reduced, the internal pressure is sufficiently increased, and the discharge rate of the infusion from the mouth member 20 becomes more stable.

また、底部シール部１２には、図３に示すように、懸架孔１５ａ、１５ｂを揃えた状態で底部シール部１２を固定する固定部１６が設けられていることが好ましい。固定部１６により、懸架孔１５ａ、１５ｂを揃えた状態でより安定に保持することができ、輸液の排出速度をさらに安定化することができる。   Further, as shown in FIG. 3, the bottom seal portion 12 is preferably provided with a fixing portion 16 for fixing the bottom seal portion 12 with the suspension holes 15a and 15b aligned. The fixing portion 16 can more stably hold the suspension holes 15a and 15b in a state where the suspension holes 15a and 15b are aligned, and can further stabilize the infusion fluid discharge rate.

容器本体１０は、可撓性フィルムにより形成することができる。
可撓性フィルムは、医療用容器の分野で用いられる合成樹脂であって、透明な材質であることが好ましい。本発明における透明とは、「日本薬局方第１５改正 ７．０２プラスチック製医薬品容器試験法のプラスチック製水性注射剤容器」に基づき、「４．透明性試験・第１法」で試験したとき、水中での波長４５０ｎｍにおける光透過率が５５％以上であることを意味する。
容器本体１０の可撓性フィルムに用いられる合成樹脂としては、例えば、ポリオレフィン樹脂、ポリアミド樹脂、ポリエステル樹脂、（メタ）アクリル樹脂、塩化ビニル樹脂、塩化ビニリデン樹脂、ポリエーテルサルホン、エチレン−ビニルアルコール共重合体等が挙げられる。なかでも、透明性、軽量性、柔軟性及び衛生性に優れ、低コストである点から、ポリオレフィン樹脂が好ましい。 The container body 10 can be formed of a flexible film.
The flexible film is a synthetic resin used in the field of medical containers and is preferably a transparent material. Transparency in the present invention is based on “4. Transparency test / first method” based on “Plastic water-based injection container of Japanese Pharmacopoeia 15th revision 7.02 Plastic drug container test method” It means that the light transmittance at a wavelength of 450 nm in water is 55% or more.
Synthetic resins used for the flexible film of the container body 10 include, for example, polyolefin resin, polyamide resin, polyester resin, (meth) acrylic resin, vinyl chloride resin, vinylidene chloride resin, polyethersulfone, ethylene-vinyl alcohol. A copolymer etc. are mentioned. Among these, polyolefin resin is preferable because it is excellent in transparency, lightness, flexibility and hygiene and is low in cost.

ポリオレフィン樹脂としては、例えば、高密度ポリエチレン、中密度ポリエチレン、高圧法低密度ポリエチレン、直鎖状低密度ポリエチレン、エチレン−酢酸ビニル共重合体等のポリエチレン系樹脂、エチレン−α−オレフィンランダム共重合体等のオレフィン系エラストマー、ポリプロピレン、エチレン−プロピレンランダム共重合体、α−オレフィン−プロピレンランダム共重合体等のポリプロピレン系樹脂や、環状ポリオレフィン樹脂等や、これらの混合物が挙げられる。こうした樹脂は、耐熱性向上等を目的として一部架橋されていてもよい。
可撓性フィルムは、単層フィルムであってもよく、多層フィルムであってもよい。 Examples of the polyolefin resin include high-density polyethylene, medium-density polyethylene, high-pressure method low-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer and other polyethylene resins, and ethylene-α-olefin random copolymers. Olefin elastomers such as polypropylene, ethylene-propylene random copolymers, polypropylene resins such as α-olefin-propylene random copolymers, cyclic polyolefin resins, and the like, and mixtures thereof. Such a resin may be partially crosslinked for the purpose of improving heat resistance.
The flexible film may be a single layer film or a multilayer film.

また、可撓性フィルムは、Ｔダイ成形により製造されたフラットフィルム、インフレーション成形により製造された筒状フィルム等が用いられる。これらのうち筒状フィルムを用いたものは、フィルム製造の際に、無菌エアーを吹き込んで製造することにより内面が無菌の筒状フィルムとなること、及び医療用容器内面が外気に触れる可能性が殆どないことから、医療用容器内面の衛生性を優れたものとすることができる点で好ましい。   As the flexible film, a flat film manufactured by T-die molding, a cylindrical film manufactured by inflation molding, or the like is used. Among these, the one using a cylindrical film has a possibility that the inner surface becomes a sterile cylindrical film by injecting aseptic air and manufacturing the film, and the inner surface of the medical container may be exposed to the outside air. Since there is almost no, it is preferable at the point which can make the sanitary property of the medical container inner surface excellent.

可撓性フィルムの厚みは、５０〜１０００μｍであることが好ましく、１００〜５００μｍであることがより好ましい。
また、容器本体１０の可撓性フィルムの中間層又は外側には、遮光、バリア目的でアルミニウム箔やアルミニウム箔ラミネート等の金属を有するフィルムや蒸着フィルムが設けられていてもよい。 The thickness of the flexible film is preferably 50 to 1000 μm, and more preferably 100 to 500 μm.
In addition, a film having a metal such as an aluminum foil or an aluminum foil laminate or a vapor deposition film may be provided on the intermediate layer or outside of the flexible film of the container body 10 for the purpose of light shielding and barrier.

容器本体１０には、可撓性フィルムで狭持され、該可撓性フィルムに溶着された口部材２０が設けられている。口部材２０と容器本体１０における輸液収容部１１内部とは連通しており、口部材２０から輸液収容部１１内の薬剤等の充填、流出が行なえる。   The container body 10 is provided with a mouth member 20 sandwiched between flexible films and welded to the flexible films. The mouth member 20 and the inside of the infusion container 11 in the container main body 10 communicate with each other, and filling and outflow of a medicine and the like in the infusion container 11 can be performed from the mouth member 20.

口部材２０は、合成樹脂製で中空形状の口部材であり、例えば、医療用バッグにおいて用いられる公知の口部材が挙げられる。医療用バッグに用いられる口部材は、例えば、輸送・保管時には、図示していないゴム栓等で閉栓されており、使用時に刺栓針が刺入できる構成となっている。また、その場合、口部材２０には、刺栓針が刺入できる面を覆う図示していない保護フィルムが剥離可能に設けられている。   The mouth member 20 is a mouth member made of a synthetic resin and having a hollow shape, and examples thereof include known mouth members used in medical bags. The mouth member used in the medical bag is, for example, closed with a rubber stopper (not shown) at the time of transportation / storage, and has a configuration in which a puncture needle can be inserted during use. Moreover, in that case, the mouth member 20 is provided with a protective film (not shown) that covers the surface into which the puncture needle can be inserted, so as to be peelable.

以上説明した医療用容器１は、輸液収容部１１が、輸液収容部１１の側縁１１ａの内面と底縁１１ｂの内面とが接触するように内側に折り込まれ、その折り込まれた状態がヒートシールされることにより固定されている。これにより、医療用容器１には底面１４が形成されているため、底面１４によって自重を支えることができ、自立性を有している。
また、医療用容器１は、袋状に形成された輸液収容部１１を内側に折り込んでヒートシールすることにより自立性を付与するものであり、ヒートシール部１３が輸液収容部１１の形成を兼ねていない。そのため、ヒートシール部１３のヒートシールの程度は輸液収容部１１からの液漏れには影響しない。すなわち、たとえヒートシール部１３のヒートシールが完全ではなくても、輸液収容部１１内の輸液が接触部分１１ｃの部分に侵入するだけであり、輸液収容部１１から輸液が漏れることはない。
また、医療用容器１は、輸液収容部１１を内側に折り込んだ状態で固定して底面１４を形成していることで、輸液収容時の輸液収容部１１における輸液を収容する部分の断面が略円形となるため、その断面積が容器前駆体１Ａの輸液収容部１１の断面積に比べて小さくなる。そのため、懸架して点滴する際、同量の輸液が輸液収容部１１内に残っているときの該輸液の液面の高さが、容器前駆体１Ａの場合に比べてより高くなる。このため、輸液が少なくなっても口部材２０に向かって輸液による充分な圧力が加わるので、輸液の滴下速度が最後まで一定の速度で安定になる効果が得られるものと思われる。 In the medical container 1 described above, the infusion storage part 11 is folded inward so that the inner surface of the side edge 11a and the inner surface of the bottom edge 11b of the infusion solution storage part 11 are in contact with each other, and the folded state is a heat seal. Is fixed. Thereby, since the bottom surface 14 is formed in the medical container 1, the bottom surface 14 can support its own weight and has self-supporting property.
In addition, the medical container 1 is provided with self-sustainability by folding the infusion storage part 11 formed in a bag shape inside and heat-sealing, and the heat seal part 13 also serves as the formation of the infusion storage part 11. Not. Therefore, the degree of heat sealing of the heat seal part 13 does not affect the liquid leakage from the infusion storage part 11. That is, even if the heat seal of the heat seal portion 13 is not complete, the infusion solution in the infusion solution storage portion 11 only enters the contact portion 11c, and the infusion solution does not leak from the infusion solution storage portion 11.
Further, the medical container 1 is fixed in a state where the infusion solution storage portion 11 is folded inward to form the bottom surface 14, so that the cross section of the portion for storing the infusion solution in the infusion solution storage portion 11 at the time of infusion solution storage is approximately. Since it becomes circular, the cross-sectional area becomes small compared with the cross-sectional area of the infusion containing part 11 of the container precursor 1A. Therefore, when suspended and instilled, the liquid level of the infusion solution when the same amount of infusion solution remains in the infusion solution storage unit 11 becomes higher than that in the case of the container precursor 1A. For this reason, even if the amount of infusion is reduced, a sufficient pressure is applied to the mouth member 20 toward the mouth member 20, so that it seems that the effect of stabilizing the infusion rate at a constant rate until the end is obtained.

尚、本発明の医療用容器は、輸液収容部が、該輸液収容部の両方の側縁の内面と底縁の内面とが接触するように折り込まれ、ヒートシールによりその折り込まれた状態で固定されているものであればよく、前述の医療用容器１には限定されない。
例えば、底部シール部１２に設ける懸架孔は、図１に例示した２つの懸架孔には限定されず、図４（Ａ）に示すように、１つの懸架孔１５ｃだけであってもよい。この場合、バランス良く懸架することができる点から、底部シール部１２の幅方向の中央に懸架孔１５ｃを設けることが好ましい。 In the medical container of the present invention, the infusion container is folded so that the inner surfaces of both side edges and the bottom edge of the infusion container are in contact with each other, and fixed in a folded state by heat sealing. It is not limited to the medical container 1 described above.
For example, the suspension holes provided in the bottom seal portion 12 are not limited to the two suspension holes illustrated in FIG. 1, and may include only one suspension hole 15 c as shown in FIG. In this case, it is preferable to provide the suspension hole 15c at the center in the width direction of the bottom seal portion 12 from the viewpoint that the suspension can be suspended with good balance.

また、懸架孔１５ｃを中央に１つだけ設け、かつ底部シール部１２を、ヒートシール部１３の部分で輸液収容部１１の外面と溶着する場合には、懸架孔１５ｃの両側に切れ込み１７、１７を入れておくことが好ましい。切れ込み１７、１７を入れておくことにより、容器本体１０を懸架するときに、図４（Ｂ）に示すように、底部シール部１２の懸架孔１５ｃの部分のみを捲り上げ、懸架孔１５ｃにフックを引っ掛けることができるため、容易に懸架することができるようになる。
ただし、切れ込み１７、１７が深い場合には切れ込み部分が取り扱い時に輸液収容部１１に達し、内容物の漏れを誘発するおそれもあるため、底部シール部１２を輸液収容部外面と溶着することなく、１つの懸架孔を底部シール部１２の中央に設けることも好ましい。この場合、容器が自立時は、底部シール部１２と輸液収容部１１の外面とが密着し、懸架時には底部シール部１２と輸液収容部１１の外面が離間する。 Further, when only one suspension hole 15c is provided in the center and the bottom seal portion 12 is welded to the outer surface of the infusion solution storage portion 11 at the heat seal portion 13, cuts 17 and 17 are formed on both sides of the suspension hole 15c. It is preferable to put As shown in FIG. 4 (B), when the container body 10 is suspended, only the portion of the suspension hole 15c of the bottom seal portion 12 is raised and hooked into the suspension hole 15c. Since it can be hooked, it can be easily suspended.
However, when the cuts 17 and 17 are deep, the cut part reaches the infusion storage part 11 during handling, and may cause leakage of the contents, so that the bottom seal part 12 is not welded to the outer surface of the infusion storage part, It is also preferable to provide one suspension hole in the center of the bottom seal portion 12. In this case, when the container is self-supporting, the bottom seal portion 12 and the outer surface of the infusion solution storage portion 11 are in close contact with each other, and when suspended, the bottom seal portion 12 and the outer surface of the infusion solution storage portion 11 are separated.

また、ヒートシール部１３の位置、形状は、容器前駆体から自立可能となるように、すなわち側縁１１ａの内面と底縁１１ｂの内面とが接触するように折り込んだ状態を固定できる位置、形状であれば、特に限定されるものではない。例えば、医療用容器１では、接触部分１１ｃに直線状のヒートシール部１３が形成されているが、ヒートシール部１３は波線状に形成されていてもよい。また、直線状でなくとも、一部のみを円、楕円等の形状でスポット状に部分的にシールしてもよい。
本発明の医療用容器は、図５に示すように、接触部分１１ｃが全てヒートシールされたヒートシール部１３Ａが形成されている医療用容器２であってもよい。 Further, the position and shape of the heat seal part 13 can be fixed independently from the container precursor, that is, the position and shape that can be fixed so that the inner surface of the side edge 11a and the inner surface of the bottom edge 11b are in contact with each other. If it is, it will not specifically limit. For example, in the medical container 1, although the linear heat seal part 13 is formed in the contact part 11c, the heat seal part 13 may be formed in the wavy shape. Moreover, even if it is not linear, only a part may be partially sealed in a spot shape with a shape such as a circle or an ellipse.
As shown in FIG. 5, the medical container of the present invention may be a medical container 2 in which a heat seal portion 13 </ b> A in which all the contact portions 11 c are heat sealed is formed.

また、医療用容器１ではヒートシール部１３は輸液収容部１１の幅方向の両側の対向する二辺に設けられているが、図６に示すように、輸液収容部１１の前面側と後面側の二辺にヒートシール部１３Ｂ、１３Ｂが設けられた医療用容器３であってもよい。医療用容器１では、ヒートシール部１３、１３が底縁１１ｂと交差しているために、それらヒートシール部１３、１３と底縁１１ｂとにより、平坦な底面１４が形成されるが、医療用容器３では、ヒートシール部１３Ｂ、１３Ｂが底縁１１ｂと平行して設けられているため、折り込まれた状態で固定されても底縁１１ｂとヒートシール部１３Ｂ、１３Ｂとが同一平面には位置せず、折れ曲がった状態となる。そのため、輸液収容部１１に輸液が充填される前には平坦な底面１４は形成されていないが、医療用容器３は輸液収容部１１に輸液を充填して立てて置いたとき、その自重によって底縁１１ｂとヒートシール部１３Ｂ、１３Ｂとが同一平面に位置するようになり、医療用容器１の底面１４と同等の底面ができ、該底面により自重を支えることができるため自立性を有する。
医療用容器３のように、輸液収容部１１の前面側と後面側の二辺にヒートシール部１３Ｂ、１３Ｂを設ける場合、輸液収容部１１を折り込んだ状態で固定できる範囲であれば、ヒートシール部１３Ｂ、１３Ｂは必ずしも接触部分１１ｃに到達していなくてもよい。 Moreover, in the medical container 1, the heat seal part 13 is provided on two opposite sides on both sides in the width direction of the infusion storage part 11, but as shown in FIG. 6, the front side and the rear side of the infusion storage part 11 The medical container 3 provided with the heat seal portions 13B and 13B on the two sides may be used. In the medical container 1, since the heat seal portions 13 and 13 intersect with the bottom edge 11b, a flat bottom surface 14 is formed by the heat seal portions 13 and 13 and the bottom edge 11b. In the container 3, since the heat seal portions 13B and 13B are provided in parallel with the bottom edge 11b, the bottom edge 11b and the heat seal portions 13B and 13B are positioned on the same plane even when fixed in a folded state. Without being bent. Therefore, the flat bottom surface 14 is not formed before the infusion solution 11 is filled with the infusion solution, but the medical container 3 is filled with the infusion solution in the infusion solution storage unit 11 and is placed by its own weight. The bottom edge 11b and the heat seal portions 13B and 13B are positioned on the same plane, and a bottom surface equivalent to the bottom surface 14 of the medical container 1 is formed, and the self-weight can be supported by the bottom surface.
When the heat seal portions 13B and 13B are provided on the two sides of the front surface side and the rear surface side of the infusion storage portion 11 as in the case of the medical container 3, the heat seal can be used as long as the infusion storage portion 11 can be fixed in a folded state. The portions 13B and 13B do not necessarily have to reach the contact portion 11c.

さらに、本発明の医療用容器は、図７に示すように、輸液収容部１１の幅方向の両側の対向する二辺及び前面側と後面側の二辺の四辺全てがヒートシールされたヒートシール部１３Ｃが設けられた医療用容器４であってもよい。四辺全てをヒートシールした医療用容器４では、二辺をヒートシールした医療用容器１、医療用容器３よりも安定した自立性を付与できる。   Furthermore, as shown in FIG. 7, the medical container according to the present invention is a heat seal in which all two sides facing each other in the width direction of the infusion storage portion 11 and all four sides of the front side and the rear side are heat sealed. The medical container 4 provided with the part 13C may be used. In the medical container 4 in which all four sides are heat-sealed, more stable independence can be imparted than in the medical container 1 and the medical container 3 in which two sides are heat-sealed.

［医療用容器の製造方法］
本発明の医療用容器の製造方法は、前述の医療用容器の製造方法である。以下、本発明の医療用容器の製造方法の実施形態の一例として、前記医療用容器１の製造方法について説明する。
本実施形態の医療用容器１の製造方法は、以下の工程を有する。
枠体挿入工程：輸液収容部１１を有する容器本体１０と、口部材２０とを有する容器前駆体１Ａの輸液収容部１１を、輸液収容部１１の両側の側縁１１ａの内面と底縁１１ｂの内面とが接触するように折り込んだときの該輸液収容部１１の断面形状と同様の断面形状を有する枠体４０の内部に挿入する工程。
気体送入工程：容器本体１０の輸液収容部１１に気体を送入する工程。
シール工程：前記枠体挿入工程及び気体送入工程の後、枠体４０により輸液収容部１１の側縁１１ａの内面と底縁１１ｂの内面とが接触するように輸液収容部１１を折り込み、ヒートシールによりその折り込んだ状態で固定する工程。 [Method of manufacturing medical container]
The method for producing a medical container of the present invention is the above-described method for producing a medical container. Hereinafter, the manufacturing method of the said medical container 1 is demonstrated as an example of embodiment of the manufacturing method of the medical container of this invention.
The manufacturing method of the medical container 1 of this embodiment has the following processes.
Frame body insertion step: The infusion container 11 of the container precursor 1A having the container body 10 having the infusion container 11 and the mouth member 20 is formed between the inner surface and the bottom edge 11b of the side edges 11a on both sides of the infusion container 11. The process of inserting in the inside of the frame 40 which has the cross-sectional shape similar to the cross-sectional shape of this infusion solution accommodating part 11 when it folds so that an inner surface may contact.
Gas feeding step: A step of feeding gas into the infusion storage part 11 of the container body 10.
Sealing step: After the frame inserting step and the gas feeding step, the infusion containing portion 11 is folded by the frame 40 so that the inner surface of the side edge 11a of the infusate containing portion 11 and the inner surface of the bottom edge 11b are in contact with each other. The process of fixing in the folded state with a seal.

容器前駆体１Ａは、従来公知の医療用容器の製造方法により製造することができる。例えば、２枚の可撓性フィルムを重ね合わせてその周縁部をヒートシールして袋状にし、上部に口部材２０をヒートシールにより溶着固定する方法や、インフレーション法を用いて成形した可撓性の筒状フィルムの２つの開口端の一方の開口端に口部材２０をヒートシールにより溶着固定する方法等が挙げられる。
底部シール部１２は、容器本体１０の底部をヒートシールすることにより形成することができる。また、懸架孔１５ａ、１５ｂも通常底部シール部の中央に懸架孔を１つ形成するのと同様の公知の方法により形成することができる。
また、口部材２０のヒートシール及び底部シール部１２のヒートシールはいずれを先に行ってもよい。 The container precursor 1A can be manufactured by a conventionally known method for manufacturing a medical container. For example, two flexible films are overlapped and the peripheral part is heat-sealed to form a bag, and the mouth member 20 is welded and fixed to the upper part by heat-sealing, or the flexibility formed using the inflation method For example, a method of welding and fixing the mouth member 20 to one opening end of the two opening ends of the cylindrical film by heat sealing may be used.
The bottom seal portion 12 can be formed by heat sealing the bottom portion of the container body 10. The suspension holes 15a and 15b can also be formed by a known method similar to the method of forming one suspension hole at the center of the bottom seal portion.
Further, either the heat sealing of the mouth member 20 or the heat sealing of the bottom seal portion 12 may be performed first.

本発明の医療用容器の製造方法では、容器前駆体１Ａとして、自立性を有さない従来の可撓性フィルムを用いた医療用容器を用いることもできる。従来の医療用容器には一般に、容器本体１０を懸架するための懸架孔を形成するために底部シール部１２が設けられており、この部分と輸液収容部１１の内面とをヒートシール部１３で溶着することにより、医療用容器１に安定した自立性を付与することができる。   In the method for producing a medical container of the present invention, a medical container using a conventional flexible film having no self-supporting property can be used as the container precursor 1A. Conventional medical containers are generally provided with a bottom seal portion 12 for forming a suspension hole for suspending the container main body 10, and this portion and the inner surface of the infusion solution storage portion 11 are connected by a heat seal portion 13. Stable independence can be imparted to the medical container 1 by welding.

枠体挿入工程では、図８（Ａ）に示すように、輸液収容部１１の両側の側縁１１ａの内面と底縁１１ｂの内面とが接触するように折り込んだときの該輸液収容部１１の断面形状、すなわち形成する底面１４の形状と同様の断面形状を有する枠体４０の内部に、容器前駆体１Ａの輸液収容部１１を挿入する。
枠体４０は、図８（Ｂ）に示すように、６枚の板片からなり、容器前駆体１Ａの幅よりも幅の大きな扁平な形態から、形成する底面１４の形状と同様の断面形状を有する形態に変形できる枠体であって分割位置４１で分割可能である。分割しうる枠体４０を用いることにより、枠体４０の内部に容器前駆体１Ａの輸液収容部１１を挿入することが容易になる。すなわち、医療用容器１の底面１４の幅方向の長さは容器本体１０の幅よりも短いため、底面１４の形状と同様の断面形状を有する変形しない枠体を用いると、該枠体に輸液収容部１１を挿入するには容器本体１０を丸める等して変形させる必要がある。これに対して、図８（Ｂ）に示すように、分割位置４１が結合した状態であっても、枠体４０は医療用容器１の容器本体１０の幅に合わせた扁平な形態で容器本体１０の挿入を行った後に、枠体４０を変形して底面１４と同様の断面形状を有する形態にすることができる。 In the frame insertion step, as shown in FIG. 8 (A), the infusion container 11 when folded so that the inner surfaces of the side edges 11a on both sides of the infusion container 11 and the inner surfaces of the bottom edge 11b are in contact with each other. The infusion solution storage part 11 of the container precursor 1A is inserted into the inside of the frame 40 having the same cross-sectional shape as that of the bottom surface 14 to be formed.
As shown in FIG. 8 (B), the frame body 40 is composed of six plate pieces, and has a cross-sectional shape similar to the shape of the bottom surface 14 formed from a flat shape having a width larger than the width of the container precursor 1A. A frame that can be deformed into a form having, and can be divided at the dividing position 41. By using the frame 40 that can be divided, it becomes easy to insert the infusion solution storage portion 11 of the container precursor 1 </ b> A into the frame 40. That is, since the length in the width direction of the bottom surface 14 of the medical container 1 is shorter than the width of the container body 10, when a non-deformable frame having the same cross-sectional shape as the bottom 14 is used, an infusion solution is applied to the frame. In order to insert the accommodating portion 11, it is necessary to deform the container main body 10 by rolling it. On the other hand, as shown in FIG. 8B, the frame body 40 has a flat shape that matches the width of the container body 10 of the medical container 1 even when the divided positions 41 are joined. After inserting 10, the frame body 40 can be deformed to have a cross-sectional shape similar to that of the bottom surface 14.

気体送入工程では、容器本体１０の輸液収容部１１に気体を送入する。これにより、輸液収容部１１が膨らんだ状態となることで、シール工程において輸液収容部１１を内側に折り込むことが可能となる。
送入する気体は、特に限定されず、例えば、滅菌された空気や二酸化炭素、窒素等が挙げられる。送入する気体としてはコストや環境安全性、菌の繁殖抑制の観点から滅菌された空気や二酸化炭素であることが好ましい。 In the gas feeding step, gas is fed into the infusion storage part 11 of the container body 10. Thereby, it becomes possible to fold the infusion storage part 11 inward in a sealing process because the infusion storage part 11 is in a swelled state.
The gas to be fed is not particularly limited, and examples thereof include sterilized air, carbon dioxide, and nitrogen. The gas to be fed is preferably sterilized air or carbon dioxide from the viewpoints of cost, environmental safety, and bacterial growth suppression.

シール工程では、枠体４０により、輸液収容部１１の側縁１１ａの内面と、底縁１１ｂの内面とが接触するように折り込んで接触部分１１ｃを形成し、その状態で接触部分１１ｃの基端をヒートシールすることによりヒートシール部１３を形成する。これにより、輸液収容部１１が内側に折り込んまれた状態で固定され、底面１４が形成される。
具体的には、輸液収容部１１の枠体４０内部にある部分は、枠体４０により幅が狭い形状、すなわち形成する底面１４の形状になっているため、そのまま枠体４０を輸液収容部１１の底縁１１ｂの部分まで押し下げいくことにより、図９に示すように、輸液収容部１１が、側縁１１ａと底縁１１ｂとが接触するように内側に折り込まれた状態となり接触部分１１ｃが形成される。次いで、形成した接触部分１１ｃの基端をヒートシールしてヒートシール部１３を形成することにより底面１４が形成され、図１に示す医療用容器１が得られる。 In the sealing step, the frame 40 is folded so that the inner surface of the side edge 11a of the infusion storage section 11 and the inner surface of the bottom edge 11b are in contact with each other to form the contact portion 11c, and in this state, the base end of the contact portion 11c The heat seal portion 13 is formed by heat sealing. Thereby, the infusion storage part 11 is fixed in a state of being folded inward, and the bottom surface 14 is formed.
Specifically, the portion inside the frame body 40 of the infusion storage section 11 has a shape that is narrower by the frame body 40, that is, the shape of the bottom surface 14 to be formed. As shown in FIG. 9, the infusion storage part 11 is folded inward so that the side edge 11a and the bottom edge 11b are in contact with each other, thereby forming a contact part 11c. Is done. Subsequently, the bottom face 14 is formed by heat-sealing the base end of the formed contact portion 11c to form the heat seal portion 13, and the medical container 1 shown in FIG. 1 is obtained.

以上説明した製造方法により、医療用容器１を簡便に製造することができる。
本発明の医療用容器の製造方法では、枠体挿入工程と気体送入工程の順序は限定されず、枠体挿入工程の後に気体送入工程を行ってもよく、気体送入工程の後に枠体挿入工程を行ってもよく、枠体挿入工程と気体送入工程を同時に行ってもよい。ただし、医療用容器１の製造がより簡便な点から、枠体挿入工程の後に気体送入工程を行うことが好ましい。 The medical container 1 can be easily manufactured by the manufacturing method described above.
In the method for producing a medical container of the present invention, the order of the frame body insertion step and the gas feeding step is not limited, and the gas feeding step may be performed after the frame body inserting step, and the frame is placed after the gas feeding step. A body insertion process may be performed, and a frame insertion process and a gas feeding process may be performed simultaneously. However, it is preferable to perform a gas feeding process after a frame insertion process from the point which manufacture of the medical container 1 is simpler.

尚、本発明の医療用容器の製造方法は前述の方法に限定されない。例えば、前述の枠体を用いて輸液収容部を賦形する代わりに、輸液収容部の形状に合わせた型を用意し、輸液収容部外面を吸引固定により型に密着させて賦形した後、ヒートシール部を形成してもよい。また、この吸引固定は、真空吸着パッドにより輸液収容部外面を固定して行なってもよい。
また、医療用容器２〜４についても、ヒートシールする部分に合わせて枠体４０の断面形状や型の形状を調節することで、医療用容器１と同様に簡便に製造できる。 In addition, the manufacturing method of the medical container of this invention is not limited to the above-mentioned method. For example, instead of shaping the infusion container using the above-mentioned frame body, prepare a mold that matches the shape of the infusion container, and after shaping the outer surface of the infusion container by adhering to the mold by suction fixation, A heat seal portion may be formed. Further, this suction fixation may be performed by fixing the outer surface of the infusion containing part with a vacuum suction pad.
Also, the medical containers 2 to 4 can be easily manufactured in the same manner as the medical container 1 by adjusting the cross-sectional shape and the shape of the mold of the frame body 40 according to the portion to be heat sealed.

［輸液入り医療用容器の製造方法］
本発明の輸液入り医療用容器は、前述した本発明の医療用容器の輸液収容部に輸液を収容した容器の製造方法である。以下、本発明の輸液入り医療用容器の製造方法の実施形態の一例として、前記医療用容器１に輸液を収容したものの製造方法について説明する。
本実施形態の輸液入り医療用容器の製造方法は、以下の工程を有する。
輸液充填工程：輸液収容部１１を有する容器本体１０と、口部材２０とを有する容器前駆体１Ａの輸液収容部１１を、輸液を充填して膨らませる工程。
シール工程：輸液収容部１１の両方の側縁１１ａの内面と底縁１１ｂの内面とが接触するように輸液収容部１１を折り込み、ヒートシールによりその折り込んだ状態で固定する工程。
封止工程：口部材２０に封をする工程。 [Method of manufacturing medical container with infusion]
The medical container with infusion of the present invention is a method for producing a container in which an infusion is accommodated in the infusion container of the medical container of the present invention described above. Hereinafter, as an example of an embodiment of a method for producing a medical container with infusion of the present invention, a method for producing an infusion containing the medical container 1 will be described.
The manufacturing method of the medical container with infusion of this embodiment has the following processes.
Infusion filling step: a step of inflating the infusion containing portion 11 of the container precursor 1A having the container main body 10 having the infusion containing portion 11 and the mouth member 20 by filling with infusion.
Sealing step: a step of folding the infusion storage portion 11 so that the inner surfaces of both side edges 11a of the infusion storage portion 11 and the inner surface of the bottom edge 11b are in contact with each other, and fixing the folded infusion state by heat sealing.
Sealing step: A step of sealing the mouth member 20.

容器前駆体１Ａの製造方法については前述の通りである。
輸液充填工程では、口部材２０から容器前駆体１Ａの輸液収容部１１に輸液を充填し、輸液収容部１１を膨らませる。
輸液の充填量は、前駆体溶液１Ａの輸液収容部１１の全容積、すなわち輸液収容部１１に収容できる輸液の最大量に対して、７０〜９０容量％であることが好ましい。輸液の充填量が７０容量％以上であれば、充分な輸液量が確保されやすい。また、輸液の充填量が９０容量％以下であれば、輸液収容部１１に一定量の空気が確保され、輸液の滴下速度が安定になりやすい。 The method for producing the container precursor 1A is as described above.
In the infusion filling process, the infusion solution 11 is filled from the mouth member 20 into the infusion container 11 of the container precursor 1A, and the infusion container 11 is expanded.
The filling amount of the infusion is preferably 70 to 90% by volume with respect to the total volume of the infusion container 11 of the precursor solution 1A, that is, the maximum amount of infusion that can be accommodated in the infusion container 11. When the filling amount of the infusion solution is 70% by volume or more, a sufficient infusion amount is easily secured. Moreover, if the filling amount of the infusion solution is 90% by volume or less, a certain amount of air is secured in the infusion solution storage portion 11, and the dropping rate of the infusion solution tends to become stable.

シール工程では、輸液収容部１１の両方の側縁１１ａの内面と底縁１１ｂの内面とが接触するように輸液収容部１１を折り込み、その状態で接触部分１１ｃの基端をヒートシールすることによりヒートシール部１３を形成する。これにより、輸液収容部１１が内側に折り込まれた状態で固定され、底面１４が形成される。
輸液収容部１１を折り込む方法は、前述の医療用容器１の製造方法と同様に、枠体４０を用いる方法であってもよく、型、真空吸着パッド等による吸引固定を用いる方法であってもよい。 In the sealing step, the infusion storage portion 11 is folded so that the inner surfaces of both side edges 11a of the infusion storage portion 11 and the inner surfaces of the bottom edge 11b are in contact with each other, and the base end of the contact portion 11c is heat-sealed in that state. The heat seal part 13 is formed. Thereby, the infusion storage part 11 is fixed in the state folded inward, and the bottom face 14 is formed.
The method for folding the infusion storage part 11 may be a method using the frame body 40 as in the method for manufacturing the medical container 1 described above, or a method using suction fixation with a mold, a vacuum suction pad or the like. Good.

封止工程では、口部材２０の封をし、口部材２０から輸液が漏れないようにする。
具体的には、使用時に刺栓針が刺入できる構成を有するゴム栓等の栓で口部材２０を閉栓し、前記栓の刺栓針を刺入できる面を覆う保護フィルムを剥離可能に設ける。 In the sealing step, the mouth member 20 is sealed so that the infusion solution does not leak from the mouth member 20.
Specifically, the mouth member 20 is closed with a stopper such as a rubber stopper having a configuration that allows insertion of a puncture needle when in use, and a protective film covering the surface of the stopper where the puncture needle can be inserted is provided in a peelable manner. .

本発明の輸液入り医療用容器の製造方法では、輸液充填工程の後にシール工程を行なう方法には限定されない。例えば、輸液収容部１１を折り込むのに枠体４０を用いる場合、枠体４０に容器前駆体１Ａの輸液収容部１１を挿入した後に輸液を充填し、その後に枠体４０を押し下げて輸液収容部１１を折り込んでヒートシールする方法であってもよく、容器前駆体１Ａの輸液収容部１１に輸液を充填した後に枠体４０の内部に挿入し、その後に枠体４０を押し下げて輸液収容部１１を折り込んでヒートシールする方法であってもよく、枠体４０に容器前駆体１Ａの輸液収容部１１を挿入し、枠体４０を押し下げて輸液収容部１１を折り込んだ後に、輸液を充填してヒートシールする方法であってもよい。同様に、型、真空吸着パッド等による吸引固定を用いる場合、容器前駆体１Ａの輸液収容部１１を吸引固定した後に輸液を充填してヒートシールする方法であってもよく、容器前駆体１Ａの輸液収容部１１に輸液を充填した後に吸引固定してヒートシールする方法であってもよい。   In the manufacturing method of the medical container with infusion of this invention, it is not limited to the method of performing a sealing process after an infusion filling process. For example, when the frame 40 is used to fold the infusion container 11, the infusion container 11 of the container precursor 1A is inserted into the frame 40, and then the infusion is filled. 11 may be folded and heat-sealed. After the infusion storage portion 11 of the container precursor 1A is filled with the infusion solution, it is inserted into the frame body 40, and then the frame body 40 is pushed down to inject the infusion solution storage portion 11. It is also possible to heat seal by folding the container body. The infusion solution storage part 11 of the container precursor 1A is inserted into the frame body 40, the frame body 40 is pushed down to fold the infusion solution storage part 11, and then the infusion solution is filled. A heat sealing method may be used. Similarly, in the case of using suction fixation with a mold, a vacuum suction pad, or the like, a method of filling the infusion solution and then heat-sealing it after the infusion container 11 of the container precursor 1A is aspirated and fixed may be used. A method may be employed in which the infusion solution storage unit 11 is filled with an infusion solution and then fixed by suction and heat sealed.

また、封止工程についても、輸液充填工程の後であればシール工程の前であってもよい。例えば、輸液充填工程にて容器前駆体１Ａの輸液収容部１１に輸液を充填し、次いで封止工程にて口部材２０の封をした後に、シール工程にて輸液収容部１１を折り込んでヒートシールする方法であってもよい。
また、医療用容器２〜４に輸液が収容された輸液入り医療用容器についても、医療用容器１に輸液が収容された輸液入り医療用容器と同様の方法で製造できる。
以上説明した製造方法によれば、輸液を充填することと、医療用容器に自立性を付与することを同時に行うことができる。
また、ヒートシール方法については、常に通電され加熱されたシールバーを用いるヒートシール、必要時にのみ通電し加熱するインパルス式のヒートシール、さらにはベルトシーラーを用い常時加熱又は必要時にのみ加熱するヒートシール方法を用いることができる。 Also, the sealing step may be before the sealing step as long as it is after the infusion filling step. For example, after filling the infusion containing portion 11 of the container precursor 1A in the infusion filling step and then sealing the mouth member 20 in the sealing step, the infusion containing portion 11 is folded and heat sealed in the sealing step. It may be a method to do.
In addition, an infusion-containing medical container in which an infusion solution is stored in the medical containers 2 to 4 can be manufactured in the same manner as the infusion-containing medical container in which the infusion solution is stored in the medical container 1.
According to the manufacturing method demonstrated above, filling with an infusion solution and providing self-supporting property to a medical container can be performed simultaneously.
As for the heat sealing method, heat sealing using a sealed bar that is always energized and heated, impulse heat sealing that energizes and heats only when necessary, and heat sealing that always heats or heats only when necessary using a belt sealer. The method can be used.

以下、実施例及び比較例を示して本発明を詳細に説明する。ただし、本発明は以下の記載によっては限定されない。
［実施例１］
インフレーション成形により製造された折り径１２０ｍｍ、厚み２５０μｍのポリエチレン製筒状フィルムを用いて、一方の開口端に底部シール部１２、他方の開口端に口部材２０をそれぞれ具備した、図１０に示すような容器前駆体５Ａを製造した。容器前駆体５Ａの輸液収容部１１の大きさは、筒状フィルムの両端のヒートシール部を含めて、横ｄ１を１２０ｍｍ、縦ｄ２を２６０ｍｍとし、底部シール部１２の幅ｄ３を２５ｍｍとし、１つの懸架孔１５ｃを底部シール部１２の中央部に設けた。次いで、枠体を用いて、図８及び図９に示す方法により、図１１に示すように、ヒートシール部１３の長さｄ４が７０ｍｍとなる医療用容器５を作成した。尚、医療用容器５の底部シール部１２と輸液収容部１１の外面とは溶着されていない。
次いで、５００ｍＬの生理食塩水を充填し、輸液収容部１１の生理食塩水以外の部分の空気量が１５０ｍＬとなるように調整し、ゴム栓体で口部材２０を封止した。空気量を一定の体積とするのは、滴下速度は容器や容器内の内容物以外の部分の影響を受けることが経験的に知られているためである。輸液収容部１１の高さｄ５はおよそ１９０ｍｍであった。
生理食塩水が充填された医療用容器５を１０４℃、４０分間高圧蒸気滅菌した。医療用容器５をその懸架孔１５ｃで点滴スタンドに懸け、ゴム栓に点滴用チューブが接続された針を挿入し、クランプにより点滴速度が毎分１００滴となるように調整して生理食塩水がなくなるまで滴下させ、毎分の液滴数を測定して点滴速度の変化を測定した。尚、１分間に１００滴は、およそ７．３ｍＬに相当する滴下速度である。 Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples. However, the present invention is not limited by the following description.
[Example 1]
As shown in FIG. 10, a polyethylene cylindrical film having a folding diameter of 120 mm and a thickness of 250 μm manufactured by inflation molding is used, and a bottom seal portion 12 is provided at one opening end and a mouth member 20 is provided at the other opening end. A vessel precursor 5A was produced. The size of the infusion storage part 11 of the container precursor 5A is such that the horizontal d 1 is 120 mm, the vertical d 2 is 260 mm, and the width d 3 of the bottom seal part 12 is 25 mm, including the heat seal parts at both ends of the cylindrical film. One suspension hole 15 c is provided in the center of the bottom seal portion 12. Then, by using a frame, by the method shown in FIGS. 8 and 9, as shown in FIG. 11, the length d 4 of the heat-sealed portion 13 creates a medical container 5 to be 70 mm. Note that the bottom seal portion 12 of the medical container 5 and the outer surface of the infusion storage portion 11 are not welded.
Next, 500 mL of physiological saline was filled, the amount of air in the portion other than the physiological saline in the infusion container 11 was adjusted to 150 mL, and the mouth member 20 was sealed with a rubber plug. The reason why the air volume is a constant volume is that it is empirically known that the dropping speed is affected by the container and other parts than the contents in the container. The height d 5 of the infusion storage part 11 was approximately 190 mm.
The medical container 5 filled with physiological saline was autoclaved at 104 ° C. for 40 minutes. The medical container 5 is hung on the drip stand through the suspension hole 15c, a needle with a drip tube connected to a rubber stopper is inserted, and the drip rate is adjusted to 100 drops per minute by clamping, so that physiological saline is supplied. The solution was dropped until it disappeared, and the number of droplets per minute was measured to measure the change in the drip rate. Incidentally, 100 drops per minute is a dropping speed corresponding to approximately 7.3 mL.

［比較例１］
実施例１で用いた本発明の医療用容器５に代えて、実施例で用いた容器前駆体５Ａを用いた以外は、実施例１と同様にして点滴速度の変化を測定した。 [Comparative Example 1]
Instead of the medical container 5 of the present invention used in Example 1, the change in the drip rate was measured in the same manner as in Example 1 except that the container precursor 5A used in the Example was used.

［比較例２］
ブロー容器に充填された市販の５００ｍＬ輸液に通気針を刺したものを用いた以外は、実施例１と同様にして点滴速度の変化を測定した。
実施例及び比較例の点滴速度の測定結果を図１３に示す。 [Comparative Example 2]
The change in the drip rate was measured in the same manner as in Example 1 except that a commercially available 500 mL infusion filled in a blow container was used with a ventilation needle inserted.
The measurement results of the drip rate of the examples and comparative examples are shown in FIG.

ブロー容器を用いた比較例２の場合の点滴速度は２０分経過後から低下した。袋状容器である容器前駆体を用いた比較例１の場合の点滴速度は、比較例２に比べて改善され３５分まで点滴速度が一定であるが、その後低下した。
これに対し、本発明の医療用容器を用いた場合の点滴速度は、内容物が殆どなくなる７０分まで一定であり、点滴速度がほとんど変化することなく安定して点滴することができる。このように最後まで一定の点滴速度を保つことができるようになると、点滴速度を調整するための看護師の監視負担を軽減でき、患者にも安心感を与えるという効果が得られる。 In the case of Comparative Example 2 using a blow container, the drip rate decreased after 20 minutes. The infusion rate in the case of Comparative Example 1 using a container precursor that is a bag-like container was improved as compared with Comparative Example 2, and the infusion rate was constant up to 35 minutes, but then decreased.
On the other hand, the infusion rate when the medical container of the present invention is used is constant up to 70 minutes when the content is almost gone, and the infusion rate can be stably infused with almost no change. Thus, when it becomes possible to maintain a constant infusion rate until the end, the nurse's monitoring burden for adjusting the infusion rate can be reduced, and an effect of giving the patient a sense of security can be obtained.

１〜５ 医療用容器 １０ 容器本体 １１ 輸液収容部 １１ａ 側縁 １１ｂ 底縁 １１ｃ 接触部分 １２ 底部シール部 １３、１３Ａ〜１３Ｃ ヒートシール部 １４ 底面 １５ａ、１５ｂ、１５ｃ 懸架孔 ２０ 口部材 １Ａ、５Ａ 前駆体容器   DESCRIPTION OF SYMBOLS 1-5 Medical container 10 Container main body 11 Infusion storage part 11a Side edge 11b Bottom edge 11c Contact part 12 Bottom seal part 13, 13A-13C Heat seal part 14 Bottom 15a, 15b, 15c Suspension hole 20 Opening member 1A, 5A Precursor Body container

Claims (6)

輸液を収容する袋状の輸液収容部、及び該輸液収容部の底部を密封する底部シール部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを備えた医療用容器であって、
前記輸液収容部が、前記輸液収容部の両方の側縁の内面と底縁の内面とが接触するように折り込まれ、ヒートシールによりその折り込まれた状態で固定されていることを特徴とする医療用容器。 A container main body having a bag-like infusion storage portion for storing the infusion solution, a bottom seal portion for sealing the bottom of the infusion storage portion, and liquid-tightly attached to the upper portion of the container body, and discharging the infusion solution in the infusion storage portion A medical container provided with a mouth member,
The infusion storage section is folded so that the inner surfaces of both side edges and the bottom edge of the infusion storage section are in contact with each other and fixed in a folded state by heat sealing. Container. 前記底部シール部が前記輸液収容部の外面に溶着されている、請求項１に記載の医療用容器。   The medical container according to claim 1, wherein the bottom seal part is welded to an outer surface of the infusion storage part. 前記底部シール部の幅方向における中央部に対して対称な位置に、前記容器本体を懸架する２つの懸架孔が設けられている、請求項２に記載の医療用容器。   The medical container according to claim 2, wherein two suspension holes for suspending the container main body are provided at positions symmetrical with respect to a central portion in the width direction of the bottom seal portion. 前記底部シール部に、前記底部シール部の２つの前記懸架孔を揃えて固定する固定部が設けられている、請求項３に記載の医療用容器。   The medical container according to claim 3, wherein the bottom seal portion is provided with a fixing portion that aligns and fixes the two suspension holes of the bottom seal portion. 請求項１に記載の医療用容器の製造方法であって、
輸液を収容する袋状の輸液収容部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを有する容器の前記輸液収容部を、前記輸液収容部の両側の側縁の内面と底縁の内面とが接触するように折り込んだときの前記輸液収容部の断面形状と同様の断面形状を有する枠体の内部に挿入する枠体挿入工程と、
前記容器本体の前記輸液収容部に気体を送入する気体送入工程と、
前記枠体挿入工程及び気体送入工程の後、前記枠体により、前記輸液収容部の両方の側縁の内面と底縁の内面とが接触するように前記輸液収容部を折り込み、ヒートシールによりその折り込んだ状態で固定するシール工程と、を有する医療用容器の製造方法。 It is a manufacturing method of the medical container according to claim 1,
A container main body having a bag-like infusion storage section for storing an infusion solution, and a liquid-tightly attached upper portion of the container main body, and a mouth member for discharging the infusion liquid in the infusion storage section; Inserting the frame body into the inside of the frame body having the same cross-sectional shape as the cross-sectional shape of the infusion storage section when folded so that the inner surface of the side edge on both sides of the infusion storage section and the inner surface of the bottom edge are in contact with each other Process,
A gas feeding step of feeding gas into the infusion container of the container body;
After the frame body inserting step and the gas feeding step, the infusion container portion is folded by the frame body so that the inner surface of both side edges and the inner surface of the bottom edge of the infusion solution container portion are in contact with each other by heat sealing. And a sealing step of fixing in the folded state. 請求項１に記載の医療用容器に輸液が収容された輸液入り医療用容器の製造方法であって、
輸液を収容する袋状の輸液収容部を有する容器本体と、該容器本体の上部に液密に取り付けられ、前記輸液収容部内の輸液を排出する口部材とを有する容器の前記輸液収容部を、輸液を充填して膨らませる輸液充填工程と、
前記輸液収容部の両方の側縁の内面と底縁の内面とが接触するように前記輸液収容部を折り込み、ヒートシールによりその折り込んだ状態で固定するシール工程と、
口部材に封をする封止工程と、を有する輸液入り医療用容器の製造方法。 A method for producing an infusion-containing medical container in which an infusion is contained in the medical container according to claim 1,
A container main body having a bag-like infusion storage section for storing an infusion solution, and a liquid-tightly attached upper portion of the container main body, and a mouth member for discharging the infusion liquid in the infusion storage section; An infusion filling process for filling and inflating the infusion; and
Folding the infusion containing part so that the inner surface of both side edges of the infusion containing part and the inner surface of the bottom edge are in contact, and fixing in the folded state by heat sealing,
And a sealing step for sealing the mouth member.
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