WO2016158905A1 - Liquid accommodating bag - Google Patents
Liquid accommodating bag Download PDFInfo
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- WO2016158905A1 WO2016158905A1 PCT/JP2016/060028 JP2016060028W WO2016158905A1 WO 2016158905 A1 WO2016158905 A1 WO 2016158905A1 JP 2016060028 W JP2016060028 W JP 2016060028W WO 2016158905 A1 WO2016158905 A1 WO 2016158905A1
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- fold
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
Definitions
- the present invention relates to a liquid storage bag for storing a liquid such as blood.
- blood products such as erythrocyte preparations used for blood transfusion are prepared from whole blood collected by blood donation.
- Blood products containing red blood cells are stored at a low temperature of 2 ° C. to 6 ° C., thereby suppressing the activity of red blood cells and extending the effective period.
- Blood products such as erythrocyte preparations are contained in a blood bag composed of a flexible sheet-like member formed of a synthetic resin material such as polyvinyl chloride mixed with a plasticizer in order to suppress hemolysis of erythrocytes.
- the blood bag is formed in a flat bag shape by joining the peripheral portions of two sheet-like members by welding or the like.
- a blood bag made of a synthetic resin material is cured at a low temperature and its elasticity is lowered. Therefore, when the blood bag is accidentally dropped when handling the blood bag stored at a low temperature, the sheet-like member constituting the blood bag cannot be extended, and the blood bag may be damaged. Therefore, a technique for forming a blood bag from a resin material that is not easily damaged at low temperatures has been proposed (see, for example, Patent Document 1).
- the red blood cell preparation is stored in a low temperature liquid state of 2 ° C. to 6 ° C.
- the force generated by the movement of the liquid accompanying the drop concentrates on the peripheral portion where the two sheet-like members are joined, and the sheet-like member is near the peripheral portion. There was a case torn. Therefore, there has been a demand for a blood bag that is not easily damaged when an impact is applied in a state where a low-temperature liquid is contained.
- an object of the present invention is to provide a liquid storage bag that is not easily damaged when an impact is applied even when a low-temperature liquid is stored.
- the present invention is a liquid storage bag formed in a flat shape by joining the peripheral portions of two sheet-like members having flexibility, and is disposed in the vicinity of the joint portion of the two sheet-like members. Further, the present invention relates to a liquid storage bag including a fold portion formed by bending the sheet-like member so that a fold line extends along a direction in which the peripheral edge extends.
- the liquid storage bag is formed in a vertically long shape having a pair of long sides and a pair of short sides in a plan view, and is disposed on one of the short sides, and / or a liquid introduction port. It is preferable that the crease portion is further disposed at a position along a pair of long sides of each of the two sheet-like members.
- the fold portion includes a plurality of the fold lines formed so that a cross section of the sheet-like member has a mountain-like shape.
- the liquid storage bag further includes a weakly bonded portion that is disposed inside the bonded portion of the sheet-like member and can be easily peeled off.
- the weakly joined portion is disposed in a portion where the fold portion is not disposed in the peripheral portion.
- the extension allowance at the fold portion is 2 mm to 6 mm.
- liquid storage bag of the present invention even when a low-temperature liquid is stored, it is not easily damaged when an impact is applied.
- FIG. 2 is a sectional view taken along line XX in FIG. It is a figure which compares and shows the fold part of a normal state, and the fold part of an expansion
- the liquid storage bag of this embodiment is used as a so-called blood bag 1 that stores blood components such as whole blood or red blood cells.
- the blood bag 1 includes a bag body 10, a first liquid outlet 20, a second liquid outlet 30, a liquid inlet 40, a fold 50, a weak joint 60, Is provided.
- the bag body 10 has most of the peripheral portions of the two sheet-like members 11, 11 having flexibility (a first liquid outlet 20 and a second liquid outlet, which will be described later). 30 and the portion excluding the portion where the liquid inlet 40 is disposed) are joined together by welding or the like to form a flat shape.
- a synthetic resin material in which a plasticizer such as bis (2-ethylhexyl) phthalate (DEHP) is blended with polyvinyl chloride (PVC), ethylene vinyl acetate copolymer (EVA), or the like is used. it can.
- a liquid storage bag as the blood bag 1
- polyvinyl chloride mixed with a plasticizer as the sheet-like member from the viewpoint of suppressing hemolysis of red blood cells.
- the bag body 10 is formed in a vertically long shape having a pair of long sides 12 and 12 and a pair of short sides 13 and 13 in plan view.
- the first liquid outlet 20, the second liquid outlet 30, and the liquid inlet 40 are disposed on one short side 13 of the pair of short sides 13, 13 of the bag body 10.
- the first liquid outlet 20 is disposed at the center of the short side 13. From the first liquid outlet 20, a part of the blood component stored in the bag body 10 (for example, a plasma component separated inside the bag body 10) is led out. Two second liquid outlets 30 are arranged so as to sandwich the first liquid outlet 20. From the second liquid outlet 30, a part of blood components contained in the bag body 10 (for example, blood cell components separated inside the bag body 10, that is, components derived from the first liquid outlet 20) Are different components).
- the liquid inlet 40 is disposed between the first liquid outlet 20 and one of the second liquid outlets 30. A tube (not shown) is connected to the liquid inlet 40, and blood and blood components are introduced into the bag body 10 through this tube.
- a cylindrical port member is sandwiched between two sheet-like members 11, 11, and the two sheet-like members 11, 11 to be welded.
- the crease part 50 is disposed in the vicinity of the joint part 14 of the two sheet-like members 11 and 11.
- the joint portion 14 is formed on substantially the entire circumference of the vertically long bag body 10.
- the fold portion 50 is disposed at a position along each of the pair of long sides 12 and 12 of the bag body 10. More specifically, the fold portion 50 is disposed at a position along the pair of long sides 12 and 12 of the two sheet-like members 11 and 11. That is, in this embodiment, the crease part 50 is arrange
- the fold part 50 is formed by folding the sheet-like member 11 so that the fold line 51 extends along the direction in which the peripheral part of the bag body 10 extends.
- the fold line 51 extends in the direction in which the long side 12 extends.
- the crease part 50 is configured to include a plurality of fold lines 51, and the plurality of fold lines 51 have a cross-sectional shape of the sheet-like member 11.
- the sheet-like members 11 are alternately bent in the opposite direction.
- the vicinity of the joint 14 refers to a pair of joints 14 disposed opposite to each other in the bag body 10 (in the present embodiment, at a position of a pair of long sides 12, 12 or a pair of short sides 13, 13).
- positioned is shown.
- the crease part 50 is preferably arranged at a position as close as possible to the joint part 14 from the viewpoint of suitably absorbing the force applied to the joint part 14.
- the distance between the joint portion 14 and the crease portion 50 (fold line 51 closest to the joint portion 14) is preferably 4 mm or less, and more preferably 2 mm or less.
- the elongation margin at the fold portion 50 is preferably 2 mm to 6 mm, and more preferably 4 mm to 6 mm, from the viewpoint of suitably absorbing the force applied to the joint portion 14.
- fold part 50 is the crease
- the above-described fold portion 50 is formed by subjecting the sheet-like member 11 to a forming process such as vacuum forming.
- the weak joint 60 is disposed inside the joint 14 in the sheet-like members 11 and 11.
- the weakly joined portion 60 is formed by joining two sheet-like members 11 and 11 so as to be easily peelable.
- the weakly joined portion 60 is formed in a portion where the fold portion 50, the first liquid outlet port 20, the second liquid outlet port 30, and the liquid inlet port 40 are not arranged at the peripheral edge of the bag body 10. .
- the weakly bonded portion refers to a portion bonded with such a strength as to peel when a force of 10N to 15N is applied.
- the bonding strength of the weakly bonded portion 60 is less than 10 N, there is a possibility that the portion bonded in a normal usage mode such as when a blood component is introduced into the blood bag 1 is peeled off.
- the bonding strength of the weakly bonded portion 60 exceeds 15N, the bonded portion is not peeled off due to the impact of dropping the blood bag 1, and the impact may not be absorbed appropriately.
- the above blood bag 1 is used when storing blood components containing red blood cells such as whole blood and red blood cell preparations. Since blood components including red blood cells need to be stored at a low temperature of 2 ° C. to 6 ° C., the blood bag 1 containing the blood components is also stored at a low temperature of 2 ° C. to 6 ° C. Under low temperature, the sheet-like member 11 constituting the blood bag 1 is hardened and has reduced stretchability. Therefore, when the blood bag 1 is accidentally dropped in this state (particularly, when the flat surface falls so as to be a horizontal surface), the force generated by the movement of the blood component accompanying the drop and the collision with the floor surface is generated. It will concentrate on the junction part 14 of two sheet-like members.
- the blood bag 1 is configured to include a fold portion 50 formed by folding the sheet-like member 11 so that the fold line 51 extends along the direction in which the peripheral edge of the bag body 10 extends.
- the crease part 50 is disposed in the vicinity of the joint part 14 of the two sheet-like members 11. Thereby, the force generated by the movement of the blood component accompanying the drop of the blood bag 1 can be absorbed by extending the fold 50. Therefore, the blood bag 1 can be hardly damaged when an impact is applied even in a state where a low-temperature liquid is accommodated.
- the blood bag 1 is formed in a vertically long shape having a pair of long sides 12 and 12 and a pair of short sides 13 and 13 in a plan view, and the first liquid outlet 20 disposed on one short side 13, The second liquid outlet 30 and the liquid inlet 40 are included, and the fold portion 50 is arranged at a position along the pair of long sides 12 and 12 in each of the two sheet-like members 11 and 11. Thereby, it can suppress that the sheet-like member 11 is damaged in a pair of long sides 12 and 12 where the junction part 14 extends long.
- the direction in which the folding line 51 extends is aligned with the direction in which the blood component stored in the blood bag 1 is derived (the direction in which the stored blood component is directed toward the first liquid outlet 20 and the second liquid outlet 30). .
- the moving direction of the blood component and the extending direction of the fold line 51 can be matched. Does not disturb the interface of the separated components. Therefore, the blood bag 1 can be hardly damaged without lowering the accuracy of blood component separation using the blood bag 1.
- the fold portion 50 is configured to include a plurality of fold lines 51 formed so that the cross section of the sheet-like member 11 has a mountain-valley shape. Thereby, the expansion allowance for absorbing an impact in the fold part 50 can be enlarged. Therefore, the blood bag 1 can be hardly damaged without greatly changing the outer shape of the blood bag 1.
- the blood bag 1 is configured to include a weakly joined portion 60, and the weakly joined portion 60 is disposed inside the joined portion 14 in the sheet-like member 11.
- the blood bag 1 can be more unlikely to be damaged.
- the present invention is not limited to the above-described embodiment, and can be modified as appropriate.
- the crease portion 50 is disposed only along the pair of long sides 12, but is not limited thereto. That is, the crease portion may be arranged along the short side of the pair of short sides where the liquid inlet or the like is not provided.
- the blood bag 1 includes the plurality of liquid outlets 20 and 30, but is not limited thereto. That is, the blood bag may be configured to include one liquid outlet.
- the sheet-like member a material obtained by molding polyvinyl chloride, polyolefin or the like into a sheet shape having a thickness of 0.4 mm was used.
- the peripheral portions of the two sheet-like members were welded and joined to produce a blood bag having a long side length of 180 mm, a short side length of 135 mm, and a capacity of 400 ml.
- a blood bag in which a fold portion (three folding lines, an extension allowance of 6 mm) is arranged in the vicinity of each of a pair of long sides (distance 2 mm from the joint portion) in the two sheet-like members was used as a blood bag of the example.
- position a crease part was made into the blood bag of a comparative example.
- the blood bags of Examples, Comparative Example 1 and Comparative Example 2 shown below were prepared, and a drop test was performed in a state where a liquid was contained therein, and the blood bag was examined for a broken state.
- the blood bag of the comparative example is easily damaged when dropped at a low temperature, whereas the blood bag of the example is not easily damaged when dropped at a low temperature. Was confirmed.
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Abstract
Provided is a liquid accommodating bag that resists damage when impacted, even while accommodating a low-temperature liquid. A liquid accommodating bag 1 formed in a flat shape by joining the peripheral edges of two flexible sheet-shaped members 11, 11, wherein the liquid accommodating bag is provided with folds 50 that are disposed near the junction 14 of the two sheet-shaped members 11, 11, and are formed by bending the sheet-shaped members 11, 11 such that fold lines 51 extend along the direction of extension of the peripheral edges.
Description
本発明は、血液等の液体を収容する液体収容バッグに関する。
The present invention relates to a liquid storage bag for storing a liquid such as blood.
従来、輸血に用いられる赤血球製剤等の血液製剤は、献血により採取した全血から作製される。赤血球を含む血液製剤は、2℃~6℃の低温下で保存することで、赤血球の活動を抑え、有効期間を延ばしている。
赤血球製剤等の血液製剤は、赤血球の溶血を抑制するために、可塑剤を配合したポリ塩化ビニール等の合成樹脂材料を成形した可撓性を有するシート状部材により構成された血液バッグに収容されて保存される。より具体的には、血液バッグは、2枚のシート状部材の周縁部を溶着等により接合して扁平な袋状に形成される。 Conventionally, blood products such as erythrocyte preparations used for blood transfusion are prepared from whole blood collected by blood donation. Blood products containing red blood cells are stored at a low temperature of 2 ° C. to 6 ° C., thereby suppressing the activity of red blood cells and extending the effective period.
Blood products such as erythrocyte preparations are contained in a blood bag composed of a flexible sheet-like member formed of a synthetic resin material such as polyvinyl chloride mixed with a plasticizer in order to suppress hemolysis of erythrocytes. Saved. More specifically, the blood bag is formed in a flat bag shape by joining the peripheral portions of two sheet-like members by welding or the like.
赤血球製剤等の血液製剤は、赤血球の溶血を抑制するために、可塑剤を配合したポリ塩化ビニール等の合成樹脂材料を成形した可撓性を有するシート状部材により構成された血液バッグに収容されて保存される。より具体的には、血液バッグは、2枚のシート状部材の周縁部を溶着等により接合して扁平な袋状に形成される。 Conventionally, blood products such as erythrocyte preparations used for blood transfusion are prepared from whole blood collected by blood donation. Blood products containing red blood cells are stored at a low temperature of 2 ° C. to 6 ° C., thereby suppressing the activity of red blood cells and extending the effective period.
Blood products such as erythrocyte preparations are contained in a blood bag composed of a flexible sheet-like member formed of a synthetic resin material such as polyvinyl chloride mixed with a plasticizer in order to suppress hemolysis of erythrocytes. Saved. More specifically, the blood bag is formed in a flat bag shape by joining the peripheral portions of two sheet-like members by welding or the like.
ここで、合成樹脂材料から構成される血液バッグは、低温状態では硬化し伸縮性が低下する。そのため、低温下で保存した血液バッグの取り扱い時に血液バッグを誤って落下させた場合には、血液バッグを構成するシート状部材が伸長できず、血液バッグが破損してしまうことがあった。
そこで、低温下において破損しにくい材質の樹脂材料により血液バッグを形成する技術が提案されている(例えば、特許文献1参照)。 Here, a blood bag made of a synthetic resin material is cured at a low temperature and its elasticity is lowered. Therefore, when the blood bag is accidentally dropped when handling the blood bag stored at a low temperature, the sheet-like member constituting the blood bag cannot be extended, and the blood bag may be damaged.
Therefore, a technique for forming a blood bag from a resin material that is not easily damaged at low temperatures has been proposed (see, for example, Patent Document 1).
そこで、低温下において破損しにくい材質の樹脂材料により血液バッグを形成する技術が提案されている(例えば、特許文献1参照)。 Here, a blood bag made of a synthetic resin material is cured at a low temperature and its elasticity is lowered. Therefore, when the blood bag is accidentally dropped when handling the blood bag stored at a low temperature, the sheet-like member constituting the blood bag cannot be extended, and the blood bag may be damaged.
Therefore, a technique for forming a blood bag from a resin material that is not easily damaged at low temperatures has been proposed (see, for example, Patent Document 1).
ところで、赤血球製剤は、2℃~6℃の低温の液体状態で保存されている。内部に液体が収容された血液バッグを落下させると、落下に伴う液体の移動により発生する力が2枚のシート状部材が接合された周縁部分に集中し、この周縁部分近傍においてシート状部材が破れてしまう場合があった。そのため、低温の液体が収容された状態において衝撃が加えられた場合に、破損しにくい血液バッグが求められていた。
By the way, the red blood cell preparation is stored in a low temperature liquid state of 2 ° C. to 6 ° C. When the blood bag containing the liquid is dropped, the force generated by the movement of the liquid accompanying the drop concentrates on the peripheral portion where the two sheet-like members are joined, and the sheet-like member is near the peripheral portion. There was a case torn. Therefore, there has been a demand for a blood bag that is not easily damaged when an impact is applied in a state where a low-temperature liquid is contained.
従って、本発明は、低温の液体が収容された状態であっても衝撃が加わった場合に破損しにくい液体収容バッグを提供することを目的とする。
Therefore, an object of the present invention is to provide a liquid storage bag that is not easily damaged when an impact is applied even when a low-temperature liquid is stored.
本発明は、可撓性を有する2枚のシート状部材の周縁部が接合されて扁平形状に形成された液体収容バッグであって、2枚の前記シート状部材の接合部の近傍に配置され、前記周縁部の延びる方向に沿って折り線が延びるように前記シート状部材が折り曲げられて形成された折り目部を備える液体収容バッグに関する。
The present invention is a liquid storage bag formed in a flat shape by joining the peripheral portions of two sheet-like members having flexibility, and is disposed in the vicinity of the joint portion of the two sheet-like members. Further, the present invention relates to a liquid storage bag including a fold portion formed by bending the sheet-like member so that a fold line extends along a direction in which the peripheral edge extends.
また、前記液体収容バッグは、平面視において一対の長辺及び一対の短辺を有する縦長状に形成され、一方の前記短辺に配置され液体が導入される液体導入口、及び/又は、液体が導出される液体導出口を更に備え、前記折り目部は、2枚の前記シート状部材それぞれにおける一対の長辺に沿う位置に配置されることが好ましい。
Further, the liquid storage bag is formed in a vertically long shape having a pair of long sides and a pair of short sides in a plan view, and is disposed on one of the short sides, and / or a liquid introduction port. It is preferable that the crease portion is further disposed at a position along a pair of long sides of each of the two sheet-like members.
また、前記折り目部は、前記シート状部材の断面が山谷状となるように形成された複数の前記折り線を備えることが好ましい。
Moreover, it is preferable that the fold portion includes a plurality of the fold lines formed so that a cross section of the sheet-like member has a mountain-like shape.
また、液体収容バッグは、前記シート状部材における前記接合部の内側に配置され、容易に剥離可能な弱接合部を更に備えることが好ましい。
Moreover, it is preferable that the liquid storage bag further includes a weakly bonded portion that is disposed inside the bonded portion of the sheet-like member and can be easily peeled off.
また、前記弱接合部は、前記周縁部における前記折り目部の配置されていない部分に配置されることが好ましい。
Further, it is preferable that the weakly joined portion is disposed in a portion where the fold portion is not disposed in the peripheral portion.
また、前記折り目部における伸び代は、2mm~6mmであることが好ましい。
Further, it is preferable that the extension allowance at the fold portion is 2 mm to 6 mm.
本発明の液体収容バッグによれば、低温の液体が収容された状態であっても衝撃が加わった場合に破損しにくい。
According to the liquid storage bag of the present invention, even when a low-temperature liquid is stored, it is not easily damaged when an impact is applied.
以下、本発明の液体収容バッグの好ましい一実施形態について、図面を参照しながら説明する。本実施形態の液体収容バッグは、全血又は赤血球等の血液成分を収容するいわゆる血液バッグ1として用いられる。
血液バッグ1は、図1に示すように、バッグ本体10と、第1液体導出口20と、第2液体導出口30と、液体導入口40と、折り目部50と、弱接合部60と、を備える。 Hereinafter, a preferred embodiment of the liquid storage bag of the present invention will be described with reference to the drawings. The liquid storage bag of this embodiment is used as a so-called blood bag 1 that stores blood components such as whole blood or red blood cells.
As shown in FIG. 1, the blood bag 1 includes abag body 10, a first liquid outlet 20, a second liquid outlet 30, a liquid inlet 40, a fold 50, a weak joint 60, Is provided.
血液バッグ1は、図1に示すように、バッグ本体10と、第1液体導出口20と、第2液体導出口30と、液体導入口40と、折り目部50と、弱接合部60と、を備える。 Hereinafter, a preferred embodiment of the liquid storage bag of the present invention will be described with reference to the drawings. The liquid storage bag of this embodiment is used as a so-called blood bag 1 that stores blood components such as whole blood or red blood cells.
As shown in FIG. 1, the blood bag 1 includes a
バッグ本体10は、図1及び図2に示すように、可撓性を有する2枚のシート状部材11,11の周縁部の大部分(後述の第1液体導出口20、第2液体導出口30及び液体導入口40が配置された部分を除く部分)が溶着等により接合されて扁平形状に形成される。シート状部材11,11としては、ポリ塩化ビニール(PVC)、エチレン酢酸ビニルコポリマー(EVA)等にフタル酸ビス(2-エチルヘキシル)(DEHP)等の可塑剤を配合した合成樹脂材料を用いることができる。液体収容バッグを血液バッグ1として用いる場合、赤血球の溶血を抑制する観点から、シート状部材として、可塑剤を配合したポリ塩化ビニールを用いることが好ましい。
As shown in FIGS. 1 and 2, the bag body 10 has most of the peripheral portions of the two sheet- like members 11, 11 having flexibility (a first liquid outlet 20 and a second liquid outlet, which will be described later). 30 and the portion excluding the portion where the liquid inlet 40 is disposed) are joined together by welding or the like to form a flat shape. As the sheet- like members 11, 11, a synthetic resin material in which a plasticizer such as bis (2-ethylhexyl) phthalate (DEHP) is blended with polyvinyl chloride (PVC), ethylene vinyl acetate copolymer (EVA), or the like is used. it can. When using a liquid storage bag as the blood bag 1, it is preferable to use polyvinyl chloride mixed with a plasticizer as the sheet-like member from the viewpoint of suppressing hemolysis of red blood cells.
本実施形態では、バッグ本体10は、平面視において、一対の長辺12,12及び一対の短辺13,13を有する縦長状に形成される。
第1液体導出口20、第2液体導出口30及び液体導入口40は、バッグ本体10の一対の短辺13,13のうちの一方の短辺13に配置される。 In the present embodiment, thebag body 10 is formed in a vertically long shape having a pair of long sides 12 and 12 and a pair of short sides 13 and 13 in plan view.
The firstliquid outlet 20, the second liquid outlet 30, and the liquid inlet 40 are disposed on one short side 13 of the pair of short sides 13, 13 of the bag body 10.
第1液体導出口20、第2液体導出口30及び液体導入口40は、バッグ本体10の一対の短辺13,13のうちの一方の短辺13に配置される。 In the present embodiment, the
The first
第1液体導出口20は、短辺13の中央部に配置される。第1液体導出口20からは、バッグ本体10に収容された血液成分の一部(例えば、バッグ本体10に内部で分離された血漿成分)が導出される。
第2液体導出口30は、第1液体導出口20を挟むように2つ配置される。第2液体導出口30からは、バッグ本体10に収容された血液成分の一部(例えば、バッグ本体10に内部で分離された血球成分、即ち、第1液体導出口20から導出される成分とは異なる成分)が導出される。
液体導入口40は、第1液体導出口20と一方の第2液体導出口30との間に配置される。液体導入口40には、チューブ(図示せず)が接続され、このチューブを介して血液や血液成分がバッグ本体10に導入される。 The firstliquid outlet 20 is disposed at the center of the short side 13. From the first liquid outlet 20, a part of the blood component stored in the bag body 10 (for example, a plasma component separated inside the bag body 10) is led out.
Two secondliquid outlets 30 are arranged so as to sandwich the first liquid outlet 20. From the second liquid outlet 30, a part of blood components contained in the bag body 10 (for example, blood cell components separated inside the bag body 10, that is, components derived from the first liquid outlet 20) Are different components).
Theliquid inlet 40 is disposed between the first liquid outlet 20 and one of the second liquid outlets 30. A tube (not shown) is connected to the liquid inlet 40, and blood and blood components are introduced into the bag body 10 through this tube.
第2液体導出口30は、第1液体導出口20を挟むように2つ配置される。第2液体導出口30からは、バッグ本体10に収容された血液成分の一部(例えば、バッグ本体10に内部で分離された血球成分、即ち、第1液体導出口20から導出される成分とは異なる成分)が導出される。
液体導入口40は、第1液体導出口20と一方の第2液体導出口30との間に配置される。液体導入口40には、チューブ(図示せず)が接続され、このチューブを介して血液や血液成分がバッグ本体10に導入される。 The first
Two second
The
以上の第1液体導出口20、第2液体導出口30及び液体導入口40は、筒状のポート部材が2枚のシート状部材11,11に挟まれてこれら2枚のシート状部材11,11に溶着されて構成される。
In the first liquid outlet 20, the second liquid outlet 30, and the liquid inlet 40, a cylindrical port member is sandwiched between two sheet- like members 11, 11, and the two sheet- like members 11, 11 to be welded.
折り目部50は、2枚のシート状部材11,11の接合部14の近傍に配置される。本実施形態では、接合部14は、縦長状のバッグ本体10の略全周に形成されている。そして、折り目部50は、バッグ本体10の一対の長辺12,12それぞれに沿う位置に配置されている。より詳細には、折り目部50は、2枚のシート状部材11,11それぞれの一対の長辺12,12に沿う位置に配置されている。即ち、本実施形態では、折り目部50は、4箇所に配置されている。
The crease part 50 is disposed in the vicinity of the joint part 14 of the two sheet- like members 11 and 11. In the present embodiment, the joint portion 14 is formed on substantially the entire circumference of the vertically long bag body 10. The fold portion 50 is disposed at a position along each of the pair of long sides 12 and 12 of the bag body 10. More specifically, the fold portion 50 is disposed at a position along the pair of long sides 12 and 12 of the two sheet- like members 11 and 11. That is, in this embodiment, the crease part 50 is arrange | positioned at four places.
折り目部50は、バッグ本体10の周縁部の延びる方向に沿って折り線51が延びるようにシート状部材11が折り曲げられて形成される。本実施形態では、折り線51は、長辺12が延びる方向に延びている。より具体的には、折り目部50は、図2に示すように、複数の折り線51を含んで構成されており、これら複数の折り線51は、シート状部材11の断面が山谷状となるようにシート状部材11が交互に逆方向に折曲されて形成されている。
The fold part 50 is formed by folding the sheet-like member 11 so that the fold line 51 extends along the direction in which the peripheral part of the bag body 10 extends. In the present embodiment, the fold line 51 extends in the direction in which the long side 12 extends. More specifically, as shown in FIG. 2, the crease part 50 is configured to include a plurality of fold lines 51, and the plurality of fold lines 51 have a cross-sectional shape of the sheet-like member 11. Thus, the sheet-like members 11 are alternately bent in the opposite direction.
ここで、接合部14の近傍とは、バッグ本体10において対向して配置される一対の接合部14(本実施形態では、一対の長辺12,12又は一対の短辺13,13の位置に配置される接合部14)の間を3等分した場合における両端部の領域を示す。折り目部50は、接合部14に加わる力を好適に吸収する観点から、接合部14にできるだけ近い位置に配置されることが好ましい。具体的には、接合部14と折り目部50(最も接合部14に近い折り線51)との間の距離は、4mm以下であることが好ましく、2mm以下であることがより好ましい。
Here, the vicinity of the joint 14 refers to a pair of joints 14 disposed opposite to each other in the bag body 10 (in the present embodiment, at a position of a pair of long sides 12, 12 or a pair of short sides 13, 13). The area | region of the both ends in the case of dividing | segmenting into 3 equally between the junction parts 14) arrange | positioned is shown. The crease part 50 is preferably arranged at a position as close as possible to the joint part 14 from the viewpoint of suitably absorbing the force applied to the joint part 14. Specifically, the distance between the joint portion 14 and the crease portion 50 (fold line 51 closest to the joint portion 14) is preferably 4 mm or less, and more preferably 2 mm or less.
折り目部50における伸び代は、接合部14に加わる力を好適に吸収する観点から、2mm~6mmであることが好ましく、4mm~6mmであることがより好ましい。
尚、折り目部50の伸び代とは、図3に示すように、シート状部材11が折り線51において折り曲げられた自然状態(シート状部材11に外力が加えられていない状態)における折り目部50の幅W1と、シート状部材11が伸ばされた状態における折り目部50の幅W2との長さの差W3をいう。 The elongation margin at thefold portion 50 is preferably 2 mm to 6 mm, and more preferably 4 mm to 6 mm, from the viewpoint of suitably absorbing the force applied to the joint portion 14.
In addition, as shown in FIG. 3, the expansion | extension allowance of the crease |fold part 50 is the crease | fold part 50 in the natural state (state in which the external force is not applied to the sheet-like member 11) in which the sheet-like member 11 was bent in the fold line 51. The width difference W3 between the width W1 and the width W2 of the crease portion 50 in a state where the sheet-like member 11 is stretched.
尚、折り目部50の伸び代とは、図3に示すように、シート状部材11が折り線51において折り曲げられた自然状態(シート状部材11に外力が加えられていない状態)における折り目部50の幅W1と、シート状部材11が伸ばされた状態における折り目部50の幅W2との長さの差W3をいう。 The elongation margin at the
In addition, as shown in FIG. 3, the expansion | extension allowance of the crease |
以上の折り目部50は、シート状部材11に真空成形等の成形加工を施すことにより形成される。
The above-described fold portion 50 is formed by subjecting the sheet-like member 11 to a forming process such as vacuum forming.
弱接合部60は、シート状部材11,11における接合部14の内側に配置される。弱接合部60は、2枚のシート状部材11,11が容易に剥離可能に接合されて形成される。
本実施形態では、弱接合部60は、バッグ本体10の周縁部における折り目部50、第1液体導出口20、第2液体導出口30及び液体導入口40が配置されていない部分に形成される。 Theweak joint 60 is disposed inside the joint 14 in the sheet- like members 11 and 11. The weakly joined portion 60 is formed by joining two sheet- like members 11 and 11 so as to be easily peelable.
In the present embodiment, the weakly joinedportion 60 is formed in a portion where the fold portion 50, the first liquid outlet port 20, the second liquid outlet port 30, and the liquid inlet port 40 are not arranged at the peripheral edge of the bag body 10. .
本実施形態では、弱接合部60は、バッグ本体10の周縁部における折り目部50、第1液体導出口20、第2液体導出口30及び液体導入口40が配置されていない部分に形成される。 The
In the present embodiment, the weakly joined
本明細書において、弱接合部とは、10N~15Nの力を加えた場合に剥離する程度の強度で接合された部分をいう。弱接合部60の接合強度が10N未満の場合には、血液バッグ1に血液成分を導入する場合等の通常の使用態様において接合された部分が剥離してしまうおそれがある。弱接合部60の接合強度が15Nを超えた場合には、血液バッグ1を落下させた衝撃により接合された部分が剥離せず、衝撃を好適に吸収できないおそれがある。
In this specification, the weakly bonded portion refers to a portion bonded with such a strength as to peel when a force of 10N to 15N is applied. When the bonding strength of the weakly bonded portion 60 is less than 10 N, there is a possibility that the portion bonded in a normal usage mode such as when a blood component is introduced into the blood bag 1 is peeled off. When the bonding strength of the weakly bonded portion 60 exceeds 15N, the bonded portion is not peeled off due to the impact of dropping the blood bag 1, and the impact may not be absorbed appropriately.
以上の血液バッグ1は、全血や赤血球製剤等の赤血球を含む血液成分を保存する場合に用いられる。赤血球を含む血液成分は、2℃~6℃の低温下で保存する必要があるため、血液成分が収容された血液バッグ1も2℃~6℃の低温下で保存される。
低温下では、血液バッグ1を構成するシート状部材11は、硬化し伸縮性が低下している。そのため、この状態で血液バッグ1を誤って落下させた場合(特に、扁平な面が水平面となるように落下した場合)、落下及び床面との衝突に伴う血液成分の移動により発生する力が2枚のシート状部材の接合部14に集中してしまう。
そこで、本実施形態では、血液バッグ1を、バッグ本体10の周縁部の延びる方向に沿って折り線51が延びるようにシート状部材11を折り曲げて形成した折り目部50を含んで構成し、この折り目部50を、2枚のシート状部材11の接合部14の近傍に配置した。これにより、血液バッグ1の落下に伴う血液成分の移動により発生する力を、折り目部50を伸長させることで吸収させられる。よって、血液バッグ1を、低温の液体が収容された状態であっても衝撃が加わった場合に破損しにくくできる。 The above blood bag 1 is used when storing blood components containing red blood cells such as whole blood and red blood cell preparations. Since blood components including red blood cells need to be stored at a low temperature of 2 ° C. to 6 ° C., the blood bag 1 containing the blood components is also stored at a low temperature of 2 ° C. to 6 ° C.
Under low temperature, the sheet-like member 11 constituting the blood bag 1 is hardened and has reduced stretchability. Therefore, when the blood bag 1 is accidentally dropped in this state (particularly, when the flat surface falls so as to be a horizontal surface), the force generated by the movement of the blood component accompanying the drop and the collision with the floor surface is generated. It will concentrate on the junction part 14 of two sheet-like members.
Therefore, in the present embodiment, the blood bag 1 is configured to include afold portion 50 formed by folding the sheet-like member 11 so that the fold line 51 extends along the direction in which the peripheral edge of the bag body 10 extends. The crease part 50 is disposed in the vicinity of the joint part 14 of the two sheet-like members 11. Thereby, the force generated by the movement of the blood component accompanying the drop of the blood bag 1 can be absorbed by extending the fold 50. Therefore, the blood bag 1 can be hardly damaged when an impact is applied even in a state where a low-temperature liquid is accommodated.
低温下では、血液バッグ1を構成するシート状部材11は、硬化し伸縮性が低下している。そのため、この状態で血液バッグ1を誤って落下させた場合(特に、扁平な面が水平面となるように落下した場合)、落下及び床面との衝突に伴う血液成分の移動により発生する力が2枚のシート状部材の接合部14に集中してしまう。
そこで、本実施形態では、血液バッグ1を、バッグ本体10の周縁部の延びる方向に沿って折り線51が延びるようにシート状部材11を折り曲げて形成した折り目部50を含んで構成し、この折り目部50を、2枚のシート状部材11の接合部14の近傍に配置した。これにより、血液バッグ1の落下に伴う血液成分の移動により発生する力を、折り目部50を伸長させることで吸収させられる。よって、血液バッグ1を、低温の液体が収容された状態であっても衝撃が加わった場合に破損しにくくできる。 The above blood bag 1 is used when storing blood components containing red blood cells such as whole blood and red blood cell preparations. Since blood components including red blood cells need to be stored at a low temperature of 2 ° C. to 6 ° C., the blood bag 1 containing the blood components is also stored at a low temperature of 2 ° C. to 6 ° C.
Under low temperature, the sheet-
Therefore, in the present embodiment, the blood bag 1 is configured to include a
また、血液バッグ1を、平面視において一対の長辺12,12及び一対の短辺13,13を有する縦長状に形成すると共に、一方の短辺13に配置された第1液体導出口20、第2液体導出口30及び液体導入口40を含んで構成し、折り目部50を、2枚のシート状部材11,11それぞれにおける一対の長辺12,12に沿う位置に配置した。これにより、接合部14が長く延びる一対の長辺12,12においてシート状部材11が破損することを抑制できる。また、折り線51の延びる方向を、血液バッグ1に収容された血液成分の導出方向(収容された血液成分が第1液体導出口20、第2液体導出口30に向かう方向)に沿わせられる。これにより、例えば、血液バッグ1の内部において血液成分を複数の成分に分離した後、一部の成分を導出させる場合に、血液成分の移動方向と折り線51の延びる方向とを一致させられるので、分離した複数の成分の界面を乱さない。よって、血液バッグ1を用いた血液成分の分離の精度を低下させることなく、血液バッグ1を破損しにくくできる。
In addition, the blood bag 1 is formed in a vertically long shape having a pair of long sides 12 and 12 and a pair of short sides 13 and 13 in a plan view, and the first liquid outlet 20 disposed on one short side 13, The second liquid outlet 30 and the liquid inlet 40 are included, and the fold portion 50 is arranged at a position along the pair of long sides 12 and 12 in each of the two sheet- like members 11 and 11. Thereby, it can suppress that the sheet-like member 11 is damaged in a pair of long sides 12 and 12 where the junction part 14 extends long. In addition, the direction in which the folding line 51 extends is aligned with the direction in which the blood component stored in the blood bag 1 is derived (the direction in which the stored blood component is directed toward the first liquid outlet 20 and the second liquid outlet 30). . Thereby, for example, when the blood component is separated into a plurality of components in the blood bag 1 and then a part of the components is derived, the moving direction of the blood component and the extending direction of the fold line 51 can be matched. Does not disturb the interface of the separated components. Therefore, the blood bag 1 can be hardly damaged without lowering the accuracy of blood component separation using the blood bag 1.
また、折り目部50を、シート状部材11の断面が山谷状となるように形成した複数の折り線51を含んで構成した。これにより、折り目部50において衝撃を吸収するための伸び代を大きくできる。よって、血液バッグ1の外形を大きく変更することなく、血液バッグ1を破損しにくくできる。
Further, the fold portion 50 is configured to include a plurality of fold lines 51 formed so that the cross section of the sheet-like member 11 has a mountain-valley shape. Thereby, the expansion allowance for absorbing an impact in the fold part 50 can be enlarged. Therefore, the blood bag 1 can be hardly damaged without greatly changing the outer shape of the blood bag 1.
また、血液バッグ1を、弱接合部60を含んで構成し、この弱接合部60を、シート状部材11における接合部14の内側に配置した。これにより、折り目部50を配置しにくい部分等において、接合部14に加わる衝撃を吸収させられるので、血液バッグ1をより破損しにくくできる。
In addition, the blood bag 1 is configured to include a weakly joined portion 60, and the weakly joined portion 60 is disposed inside the joined portion 14 in the sheet-like member 11. Thereby, since the impact added to the junction part 14 is absorbed in the part where the crease part 50 is difficult to arrange, the blood bag 1 can be more unlikely to be damaged.
以上、本発明の液体収容容器の好ましい一実施形態について説明したが、本発明は、上述した実施形態に制限されるものではなく、適宜変更が可能である。
例えば、本実施形態では、折り目部50を、一対の長辺12に沿ってのみ配置したが、これに限らない。即ち、折り目部を一対の短辺のうち、液体導入口等の設けられていない短辺に沿っても配置してもよい。 The preferred embodiment of the liquid container of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be modified as appropriate.
For example, in the present embodiment, thecrease portion 50 is disposed only along the pair of long sides 12, but is not limited thereto. That is, the crease portion may be arranged along the short side of the pair of short sides where the liquid inlet or the like is not provided.
例えば、本実施形態では、折り目部50を、一対の長辺12に沿ってのみ配置したが、これに限らない。即ち、折り目部を一対の短辺のうち、液体導入口等の設けられていない短辺に沿っても配置してもよい。 The preferred embodiment of the liquid container of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be modified as appropriate.
For example, in the present embodiment, the
また、本実施形態では、血液バッグ1を、複数の液体導出口20,30を含んで構成したが、これに限らない。即ち、血液バッグを、1つの液体導出口を含んで構成してもよい。
In the present embodiment, the blood bag 1 includes the plurality of liquid outlets 20 and 30, but is not limited thereto. That is, the blood bag may be configured to include one liquid outlet.
次に、本発明を実施例に基づいて更に詳細に説明するが、本発明はこれに限定されるものではない。
Next, the present invention will be described in more detail based on examples, but the present invention is not limited thereto.
[血液バッグの作製]
シート状部材として、ポリ塩化ビニール、ポリオレフィン等を厚さ0.4mmのシート状に成形したものを用いた。2枚のシート状部材の周縁部を溶着して接合し、長辺の長さ180mm、短辺の長さ135mm、容量400mlの血液バッグを作製した。
2枚のシート状部材における一対の長辺それぞれの近傍(接合部からの距離2mm)に折り目部(折り線3本、伸び代6mm)を配置した血液バッグを実施例の血液バッグとした。
また、折り目部を配置しなかった血液バッグを比較例の血液バッグとした。 [Production of blood bag]
As the sheet-like member, a material obtained by molding polyvinyl chloride, polyolefin or the like into a sheet shape having a thickness of 0.4 mm was used. The peripheral portions of the two sheet-like members were welded and joined to produce a blood bag having a long side length of 180 mm, a short side length of 135 mm, and a capacity of 400 ml.
A blood bag in which a fold portion (three folding lines, an extension allowance of 6 mm) is arranged in the vicinity of each of a pair of long sides (distance 2 mm from the joint portion) in the two sheet-like members was used as a blood bag of the example.
Moreover, the blood bag which did not arrange | position a crease part was made into the blood bag of a comparative example.
シート状部材として、ポリ塩化ビニール、ポリオレフィン等を厚さ0.4mmのシート状に成形したものを用いた。2枚のシート状部材の周縁部を溶着して接合し、長辺の長さ180mm、短辺の長さ135mm、容量400mlの血液バッグを作製した。
2枚のシート状部材における一対の長辺それぞれの近傍(接合部からの距離2mm)に折り目部(折り線3本、伸び代6mm)を配置した血液バッグを実施例の血液バッグとした。
また、折り目部を配置しなかった血液バッグを比較例の血液バッグとした。 [Production of blood bag]
As the sheet-like member, a material obtained by molding polyvinyl chloride, polyolefin or the like into a sheet shape having a thickness of 0.4 mm was used. The peripheral portions of the two sheet-like members were welded and joined to produce a blood bag having a long side length of 180 mm, a short side length of 135 mm, and a capacity of 400 ml.
A blood bag in which a fold portion (three folding lines, an extension allowance of 6 mm) is arranged in the vicinity of each of a pair of long sides (distance 2 mm from the joint portion) in the two sheet-like members was used as a blood bag of the example.
Moreover, the blood bag which did not arrange | position a crease part was made into the blood bag of a comparative example.
以下に示す実施例、比較例1及び比較例2の血液バッグを作製し、内部に液体を収容した状態で落下テストを行い、血液バッグの破損状態を調べた。
The blood bags of Examples, Comparative Example 1 and Comparative Example 2 shown below were prepared, and a drop test was performed in a state where a liquid was contained therein, and the blood bag was examined for a broken state.
[血液バッグの破損試験]
実施例及び比較例の血液バッグそれぞれにつき、内部に275mlの水を収容した後、血液バッグの温度が4℃になるまで冷却保管した。その後、血液バッグを100cmの高さから、扁平な面が水平な床面に対向するように落下させて破損状態を調べた。破損試験は、実施例及び比較例それぞれにつき、10個の血液バッグを準備し、各血液バッグを1回落下させて行った。結果を表1に示す。
尚、血液バッグの破損状態は、以下の基準で評価した。
○:水のリークは確認されなかった
×:血液バッグが破損して水のリークが確認された
-:落下ミス [Blood bag breakage test]
For each blood bag of the example and the comparative example, 275 ml of water was accommodated therein, and then cooled and stored until the temperature of the blood bag reached 4 ° C. Thereafter, the blood bag was dropped from a height of 100 cm so that the flat surface was opposed to the horizontal floor surface, and the damage state was examined. The breakage test was performed by preparing 10 blood bags for each of the examples and comparative examples and dropping each blood bag once. The results are shown in Table 1.
The damaged state of the blood bag was evaluated according to the following criteria.
○: No water leak was confirmed. ×: The blood bag was damaged and water leak was confirmed.
実施例及び比較例の血液バッグそれぞれにつき、内部に275mlの水を収容した後、血液バッグの温度が4℃になるまで冷却保管した。その後、血液バッグを100cmの高さから、扁平な面が水平な床面に対向するように落下させて破損状態を調べた。破損試験は、実施例及び比較例それぞれにつき、10個の血液バッグを準備し、各血液バッグを1回落下させて行った。結果を表1に示す。
尚、血液バッグの破損状態は、以下の基準で評価した。
○:水のリークは確認されなかった
×:血液バッグが破損して水のリークが確認された
-:落下ミス [Blood bag breakage test]
For each blood bag of the example and the comparative example, 275 ml of water was accommodated therein, and then cooled and stored until the temperature of the blood bag reached 4 ° C. Thereafter, the blood bag was dropped from a height of 100 cm so that the flat surface was opposed to the horizontal floor surface, and the damage state was examined. The breakage test was performed by preparing 10 blood bags for each of the examples and comparative examples and dropping each blood bag once. The results are shown in Table 1.
The damaged state of the blood bag was evaluated according to the following criteria.
○: No water leak was confirmed. ×: The blood bag was damaged and water leak was confirmed.
表1に示すように、比較例の血液バッグは、低温下において落下させた場合に破損しやすいのに対して、実施例の血液バッグは、低温下において落下させた場合にも破損しにくいことが確認された。
As shown in Table 1, the blood bag of the comparative example is easily damaged when dropped at a low temperature, whereas the blood bag of the example is not easily damaged when dropped at a low temperature. Was confirmed.
1 血液バッグ(液体収容容器)
10 バッグ本体
11 シート状部材
12 長辺
13 短辺
14 接合部
20 第1液体導出口(液体導出口)
30 第2液体導出口(液体導出口)
40 液体導入口
50 折り目部
51 折り線
60 弱接合部 1 Blood bag (liquid container)
DESCRIPTION OFSYMBOLS 10 Bag main body 11 Sheet-like member 12 Long side 13 Short side 14 Joining part 20 1st liquid outlet (liquid outlet)
30 Second liquid outlet (liquid outlet)
40Liquid inlet 50 Fold part 51 Fold line 60 Weak joint part
10 バッグ本体
11 シート状部材
12 長辺
13 短辺
14 接合部
20 第1液体導出口(液体導出口)
30 第2液体導出口(液体導出口)
40 液体導入口
50 折り目部
51 折り線
60 弱接合部 1 Blood bag (liquid container)
DESCRIPTION OF
30 Second liquid outlet (liquid outlet)
40
Claims (6)
- 可撓性を有する2枚のシート状部材の周縁部が接合されて扁平形状に形成された液体収容バッグであって、
2枚の前記シート状部材の接合部の近傍に配置され、前記周縁部の延びる方向に沿って折り線が延びるように前記シート状部材が折り曲げられて形成された折り目部を備える液体収容バッグ。 It is a liquid storage bag formed in a flat shape by joining the peripheral portions of two flexible sheet-like members,
A liquid storage bag provided with a crease portion that is disposed in the vicinity of a joint portion between two sheet-like members and is formed by bending the sheet-like member so that a fold line extends along a direction in which the peripheral edge extends. - 前記液体収容バッグは、平面視において一対の長辺及び一対の短辺を有する縦長状に形成され、
一方の前記短辺に配置され液体が導入される液体導入口、及び/又は、液体が導出される液体導出口を更に備え、
前記折り目部は、2枚の前記シート状部材それぞれにおける一対の長辺に沿う位置に配置される請求項1に記載の液体収容バッグ。 The liquid storage bag is formed in a vertically long shape having a pair of long sides and a pair of short sides in plan view,
A liquid introduction port arranged on one of the short sides and into which a liquid is introduced, and / or a liquid lead-out port from which the liquid is led out,
The liquid storage bag according to claim 1, wherein the fold portion is disposed at a position along a pair of long sides of each of the two sheet-like members. - 前記折り目部は、前記シート状部材の断面が山谷状となるように形成された複数の前記折り線を備える請求項1又は2に記載の液体収容バッグ。 The liquid storage bag according to claim 1 or 2, wherein the fold portion includes a plurality of the fold lines formed so that a cross section of the sheet-like member has a mountain-like shape.
- 前記シート状部材における前記接合部の内側に配置され、容易に剥離可能な弱接合部を更に備える請求項1~3のいずれかに記載の液体収容バッグ。 The liquid storage bag according to any one of claims 1 to 3, further comprising a weakly bonded portion that is disposed inside the bonded portion of the sheet-like member and is easily peelable.
- 前記弱接合部は、前記周縁部における前記折り目部の配置されていない部分に配置される請求項4に記載の液体収容バッグ。 The liquid storage bag according to claim 4, wherein the weakly joined portion is disposed at a portion of the peripheral portion where the fold portion is not disposed.
- 前記折り目部における伸び代は、2mm~6mmである請求項1~5のいずれかに記載の液体収容バッグ。 The liquid storage bag according to any one of claims 1 to 5, wherein an extension allowance at the fold portion is 2 mm to 6 mm.
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Application Number | Priority Date | Filing Date | Title |
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JP2015-071798 | 2015-03-31 | ||
JP2015071798A JP6384386B2 (en) | 2015-03-31 | 2015-03-31 | Liquid storage bag |
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WO2016158905A1 true WO2016158905A1 (en) | 2016-10-06 |
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ID=57005121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2016/060028 WO2016158905A1 (en) | 2015-03-31 | 2016-03-29 | Liquid accommodating bag |
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JP (1) | JP6384386B2 (en) |
WO (1) | WO2016158905A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009538650A (en) * | 2006-06-02 | 2009-11-12 | フレゼニウス メディカル ケア ドイッチェランド ゲゼルシャフト ミット ベシュレンクテル ハフツング | Container filled with liquid concentrate to form dialysate |
WO2010098322A1 (en) * | 2009-02-26 | 2010-09-02 | 三井化学株式会社 | Multilayer film and bag formed of the film |
JP2011500201A (en) * | 2007-10-16 | 2011-01-06 | セントラルメディカルサービス株式会社 | Infusion solution double packaging container |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003052806A (en) * | 2001-08-13 | 2003-02-25 | Kawasumi Lab Inc | Blood bag |
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- 2016-03-29 WO PCT/JP2016/060028 patent/WO2016158905A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009538650A (en) * | 2006-06-02 | 2009-11-12 | フレゼニウス メディカル ケア ドイッチェランド ゲゼルシャフト ミット ベシュレンクテル ハフツング | Container filled with liquid concentrate to form dialysate |
JP2011500201A (en) * | 2007-10-16 | 2011-01-06 | セントラルメディカルサービス株式会社 | Infusion solution double packaging container |
WO2010098322A1 (en) * | 2009-02-26 | 2010-09-02 | 三井化学株式会社 | Multilayer film and bag formed of the film |
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JP2016189934A (en) | 2016-11-10 |
JP6384386B2 (en) | 2018-09-05 |
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