JP5175323B2 - 可撓容器を充填する充填方法および可撓容器 - Google Patents
可撓容器を充填する充填方法および可撓容器 Download PDFInfo
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- JP5175323B2 JP5175323B2 JP2010242206A JP2010242206A JP5175323B2 JP 5175323 B2 JP5175323 B2 JP 5175323B2 JP 2010242206 A JP2010242206 A JP 2010242206A JP 2010242206 A JP2010242206 A JP 2010242206A JP 5175323 B2 JP5175323 B2 JP 5175323B2
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Description
液体薬剤と液体希釈液の二元組合せのために開発された容器はまた、容器を圧迫することや、容器を硬い表面の上に落とすことで発生するような衝撃による内部流体圧の影響を非常に受けやすい。このような内部流体圧が発生すると、希釈液および薬剤のコンパートメントを分離する剥離式または破断式シール、または出口コンパートメントから薬剤を分離するシールが不注意によって剥離開放し、容器の二元成分の早すぎる混合が発生したり、液体薬剤の塊が出口コンパートメントに進入することがある。
容器がこうした材料で満たされている場合、形成されたフィルム・ウェブが乾燥窒素または濾過空気の噴射によって吹かれて開かれ、ある容積を画定し、そこに測定された量の液体が導入される。多くの場合、この容器に収容される液体の量は約100分の1以内に管理されなければならない。容器が液体で満たされた後濾過空気または窒素を容器から排出するのは極めて困難である。空気が充填ポートを通じて排出されるまで、但し何らかの液体が流出する前に、容器壁をゆっくりと圧迫する必要がある。
従って、処理工程または別個の装置の追加なしに、充填工程中に形成された頭隙が最終製品からほぼ除去されるような方法で、容器が製造及び充填されることが望ましい。
本発明の実施形態の追加態様では、出口コンパートメントは空気または窒素といったある量の第2ガスを収容するので、容器の操作によって剥離式シールが断裂すると、第2ガスは液体薬剤の表面を上昇させてメニスカスを形成する。このメニスカスによって、薬剤コンパートメント内の薬剤の流体レベルが、容器材料内に形成された目盛に対して視覚的に確認できるようになる。
図2、図3及び図4で示される第1例示実施形態の場合のように、透明高障壁中間積層フィルム(図5の71)は、中間フィルム71の上、すなわち容器の薬剤コンパートメントの上に配置された不透明高障壁アルミニウム箔含有保護フィルム(図2及び図3の55)と組み合わせて提供される。従って、不透明高障壁保護フィルムと組み合わされた透明高障壁中間フィルム71は、薬剤コンパートメントの上に配置される高障壁保護被覆を構成する。以下さらに詳細に説明されるように、高障壁保護被覆には、高水分障壁層、高酸素障壁層、またはこれら両方が含まれる。不透明アルミニウム箔含有保護用フィルム55は、保護が望ましい場合、容器の薬剤コンパートメントへの紫外線及び可視スペクトル光線の透過を防止するために提供される。
完成した容器の使用は容器を製造するために使用されるフィルムとはほぼ無関係である。コンパートメントに分けられた容器10と混合システムは、図1及び図2に示された完全な構成で、健康管理人員、通常病院の薬剤サービス部門によって受け入れられる。ここで図6を参照すると、容器の使用を準備する際、アルミニウム箔含有保護層55のタブ62を把握して容器から保護層を剥離し、液体薬剤を収容する中間コンパートメント20の目視検査を可能にすることで液体薬剤が検査される。薬剤と薬剤コンパートメントが正常な状態であれば、すなわち、隔離式シールが損傷しておらず、正常な投与量の液体薬剤が存在し、その色と清澄度が正常である、等であれば、容器を操作して上部希釈液コンパートメント18の部分で前部及び後部シートを圧縮することで、図17に示されるように溶液が混合される。容器の操作によって発生した流体力による機械的圧力によって、希釈液及び薬剤のコンパートメント間の第1選択剥離式シールが断裂する(断裂した状態が24’で示される)。さらに容器を振る操作によって、希釈液と薬剤の液体とが混合される。完全な混合作用が得られたことの確認は、澄んだ透明な前部シートを通じて混合溶液を視覚的に観察することでなされる。混合作用の完了後、容器の前部及び後部シートを再び圧縮し、シールを断裂する流体圧を容器内に発生させることで、図18に示されるように、薬剤コンパートメントと下部安全確保コンパートメントとの間の第2選択剥離式シールが破れる(断裂した状態が26’で示される)。その後混合溶液は容器から出口ポート30を通じて、標準IV供給セットを使用して投薬される。
第2シール82の大きな幅寸法は、剥離開放するために第1優先剥離式シール80よりはるかに大きな力を必要とすることが理解されるだろう。さらに、図9から分かるように、液体薬剤コンパートメント20の面積は、希釈液コンパートメント18の液体面積よりかなり小さい。従って、容器は薬剤よりかなり大きな量の液体希釈液を収容することができる。希釈液の量が大きいということの意味は、容器が操作される場合、薬剤が第2剥離式シール82に対して発生する力よりも大きな力を、希釈液が第1剥離式シール80に対して行使するということである。第1剥離式シール80が必要とする作動エネルギーは第2剥離式シール82より低いので、第1シール80が第2剥離式シール82に優先して剥離開放することが理解される。
図9の実施形態とは対照的に、図10の第1優先剥離式シール84は従来の矩形形状を有していない。本発明の原理の実行によれば、第1優先剥離式シール84は正弦曲線または蛇状の形状に形成され、87で示される少なくとも1つの応力ライザが希釈液チャンバ18に突出し、偏位点は希釈液チャンバを操作することによって発生する予想圧力面の方向を向いている。
希釈液コンパートメントの方向を向いた屈曲点を有する応力ライザ87に加えて、図10の第1選択剥離式シール84には、薬剤コンパートメント20の方向を向いた屈曲点を有する2つの追加応力ライザ88及び89が含まれるのが分かる。当業者によく理解される方法で、各応力ライザ屈曲点は剥離開始点を画定し、そこで剥離式シールは、開始点の向きにあるコンパートメントでの圧力事象に応答して剥離開放し始める。動作の際、屈曲点、または開始点の凸状先端エッジは希釈液または液体薬剤の何れかのコンパートメントが圧搾されるとき、その何れかの薬剤の流体圧に対する複合抵抗特性を示す。図10の曲線第1優先剥離式シール84のような非直線障壁に対して発生する圧力面の数学的有限要素分析が示すところによれば、ΔPによる力は、屈曲点が圧力面の方向に延びる、応力ライザの最大屈曲の領域に集中する。ΔPによるこの集中された力は、屈曲点で優先的にシールの断裂を開始しようとする。さらに、こうしたシールは、シールが均一な直線の構成である場合より、低いわずかな操作圧力で剥離プロセスを開始しようとする。
本発明の原理の実行によって提供される容器と優先剥離式シールの追加実施形態とが図12に半概略形態で例示される。図12に例示される容器の実施形態は図11の実施形態と本質的に同じ優先剥離式シールの構造および配置を備えているが、優先剥離式シールと出口ポート30との間に配置された追加剥離式シール、すなわち安全シールを備えている。図12および図11の実施形態の間の優先剥離式シールの構造および配置が相似しているため、開始点等を含む優先剥離式シールは同一の参照符号で特定される。しかし、出口範囲(図11の22)はここでは、一般に矩形の形状で容器にわたり、両側で永久周辺シール16と重なり合う安全シール100によって二分されている。安全シール100は出口範囲(図11の22)を、安全シール100と第2優先剥離式シール92との間に配置された圧力チャンバ102と、安全シール100と出口ポート30との間に配置された出口チャンバ104とにさらに分割する。
理論にしばられることなく、シールの剥離性は、時間、圧力及び温度を、後部シートの中間及び外部層より低い溶融温度を有する、容器の前部及び後部シートの内部層の間の境界を溶解する程度に制限することで達成されると考えられる。溶解ゾーンの内部層の構造変化の深さが制限され、それによって剥離する性質がシールに付与される一方、容器の正常な取扱時の破損を防止する十分な強度が提供される。好適には、本発明の容器の作動力は、極端な取扱い条件で容器の完全性を提供する一方で、全てのユーザにとって作動が容易であるように厳しく管理される。作動労力または力は、各シールの形状、幅Wまたはその機能(第1優先剥離式シール、第2優先剥離式シール、または安全シール)によって必然的に変化するが、好適には個々のシールに関して±6.89Pa(±1ポンド/平方インチ(psi))程度まで均一な破裂圧力を特徴とする。
特に液体の動きや乱流の影響を受けやすい乳剤、リポソーム等の複合貯蔵及び投与に適した医用容器の追加実施形態が図13に例示される。一般に110で示される容器は表面的には前に説明した実施形態と同様であるが、この容器は活性成分、好適には液体を収容する単一コンパートメント112を備えていることが注目される。成分コンパートメント112は、容器にわたり、容器を構成する前部及び後部シートを結合する永久周辺シール16と重なり合う一般に直線の矩形剥離式シール116によって空の出口コンパートメント114から分離される。出口ポート30は容器の一端に提供され、出口コンパートメント114と流通する。動作の際、容器112を圧搾して操作すると、成分コンパートメント112内に剥離式シール116を断裂する流体圧力が発生し、投与のために出口ポート30を通じて液体成分が利用できるようにする。
当業者が理解するように、充填処理終了時の頭隙調整工程は一定の量のヘリウム・ガスを容器の成分コンパートメントに導入し、容器内の初期頭隙を画定する。ここで図13を参照すると、ヘリウムの噴射によって画定された初期頭隙はVi で示され、成分コンパートメントに提供される初期頭隙容積を表す。
18、20、22 コンパートメント
24、26 優先剥離式シール
Claims (14)
- 乱流の影響を受けやすい液体薬剤の複合貯蔵及び投与のための可撓容器を充填する充填方法において、
可撓透明前部シートを提供し、
可撓後部シートを提供し、前記前部及び後部シートが共通周辺エッジに沿って互いに密封され、
さらに、
隣接する表面の加熱された部分を互いに溶融させるために第1特定範囲で前記前部及び後部シートを加熱し、それによって前記共通周辺エッジの2つの側面の間に延びる剥離式シールを形成し、前記剥離式シールが、液体収容コンパートメントと出口コンパートメントとを形成するために前記前部及び後部シートを分離式に接合し、
さらに、
前記液体収容コンパートメントに薬剤液体を充填し、
前記液体収容コンパートメントの頭隙を調整するために第1ガスを前記コンパートメントに導入し、
前記液体薬剤及び第1ガスを密閉するために前記容器の共通周辺エッジに沿って前記シールを仕上げ、
前記第1ガスが空気の少なくとも4倍の割合で前記容器の前部及び後部シートを通じて透過性であり、
前記第1ガスと空気との間の異なる透過性によって、前記液体薬剤の上の前記頭隙がほぼ除去される、充填方法。 - 前記第1ガスがヘリウム、水素、アルゴン及びネオンからなるグループから選択される、請求項1に記載の充填方法。
- 前記剥離式シールが、約1.5秒〜約2.5秒の範囲内の時間、約摂氏118.33度(245°F)〜摂氏129.44度(265°F)の範囲内のヒートシール温度を維持する一方で、約1585.79Pa(230psi)〜約2344.21Pa(340psi)の圧力を加えることで形成される、請求項2に記載の充填方法。
- 前記前部及び後部シートが、前記シールの領域で互いに連結する、スチレン・エチレン−ブチレン・スチレン・エラストマーと混合されたポリプロピレン−ポリエチレン共重合体の少なくとも1つのフィルム層を備える、請求項3に記載の充填方法。
- 前記前部及び後部シートの前記ポリプロピレン−ポリエチレン共重合体が約80%/20%の重量比でスチレン・エチレン−ブチレン・スチレン・エラストマーと混合される、請求項4に記載の充填方法。
- さらに、ある量の第2ガスを前記出口コンパートメントに導入する、請求項5に記載の充填方法。
- 投与のために前記剥離式シールを断裂し前記液体薬剤が前記出口コンパートメントにアクセスするように前記容器が操作される時、前記第2ガスが前記液体薬剤の上にメニスカスを形成する、請求項1に記載の充填方法。
- さらに、前記容器と一体の、前記容器がIV投与のためにアクセスされる時、前記液体薬剤の上にメニスカスを確立する手段を導入することを含む請求項1に記載の充填方法。
- 前記剥離式シールが前記容器の操作によって発生する前記シールにかかる流体圧に対して均一な抵抗特性を提供するよう構成され、前記均一な抵抗特性が±13.78Pa(2psi)以内にまで均一な所定の印加圧力で前記シールを剥離開放する、請求項1に記載の充填方法。
- 前記出口コンパートメントがある量の空気を収容し、前記ある量の空気が、前記容器の操作によって発生する前記剥離式シールの断裂の際前記液体薬剤の上にメニスカスを形成する、請求項1に記載の充填方法。
- 前記可撓前部シートが、スチレン・エチレン−ブチレン・スチレン・エラストマーと混合されたポリプロピレン−ポリエチレン共重合体の単一層フィルムから構成される、請求項1に記載の充填方法。
- 前記可撓後部シートが、スチレン・エチレン−ブチレン・スチレン・エラストマーと混合されたポリプロピレン−ポリエチレン共重合体の単一層フィルムから構成される、請求項1に記載の充填方法。
- 前記可撓後部シートが、スチレン・エチレン−ブチレン・スチレン・エラストマーと混合されたポリプロピレン−ポリエチレン共重合体の内部層を含む多層積層物から構成される、請求項1に記載の充填方法。
- 前記多層積層後部シートがさらに、不透明高障壁中間層と外部高温抵抗性モールド・リリース層とを含む、請求項13に記載の充填方法。
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US08/967,687 | 1997-11-12 | ||
US08/967,687 US5928213A (en) | 1996-05-13 | 1997-11-12 | Flexible multiple compartment medical container with preferentially rupturable seals |
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JP2008227364A Expired - Lifetime JP4473329B2 (ja) | 1997-11-12 | 2008-09-04 | 優先断裂式シールを伴う可撓多数コンパートメント医用容器 |
JP2010242206A Expired - Lifetime JP5175323B2 (ja) | 1997-11-12 | 2010-10-28 | 可撓容器を充填する充填方法および可撓容器 |
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JP2008227364A Expired - Lifetime JP4473329B2 (ja) | 1997-11-12 | 2008-09-04 | 優先断裂式シールを伴う可撓多数コンパートメント医用容器 |
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EP (2) | EP2238963B1 (ja) |
JP (3) | JP2001522655A (ja) |
KR (1) | KR100524357B1 (ja) |
AT (1) | ATE491427T1 (ja) |
AU (1) | AU746490B2 (ja) |
CA (2) | CA2309167C (ja) |
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1997
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- 1998-10-01 JP JP2000520171A patent/JP2001522655A/ja not_active Withdrawn
- 1998-10-01 WO PCT/US1998/020510 patent/WO1999024086A1/en active IP Right Grant
- 1998-10-01 ES ES10007867T patent/ES2424919T3/es not_active Expired - Lifetime
- 1998-10-01 AT AT98950789T patent/ATE491427T1/de not_active IP Right Cessation
- 1998-10-01 EP EP20100007867 patent/EP2238963B1/en not_active Expired - Lifetime
- 1998-10-01 CA CA 2588610 patent/CA2588610C/en not_active Expired - Lifetime
- 1998-10-01 EP EP98950789A patent/EP1034006B1/en not_active Expired - Lifetime
- 1998-10-01 KR KR10-2000-7005106A patent/KR100524357B1/ko not_active IP Right Cessation
- 1998-10-01 ES ES98950789T patent/ES2354801T3/es not_active Expired - Lifetime
- 1998-10-01 DE DE69842051T patent/DE69842051D1/de not_active Expired - Lifetime
- 1998-10-01 AU AU96747/98A patent/AU746490B2/en not_active Expired
- 1998-12-07 US US09/206,449 patent/US6117123A/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP1034006A1 (en) | 2000-09-13 |
AU746490B2 (en) | 2002-05-02 |
KR100524357B1 (ko) | 2005-10-26 |
EP2238963A1 (en) | 2010-10-13 |
ATE491427T1 (de) | 2011-01-15 |
ES2424919T3 (es) | 2013-10-09 |
CA2309167C (en) | 2007-08-21 |
JP2008289927A (ja) | 2008-12-04 |
EP2238963B1 (en) | 2013-06-05 |
JP2001522655A (ja) | 2001-11-20 |
JP2011026012A (ja) | 2011-02-10 |
DE69842051D1 (de) | 2011-01-27 |
HK1029293A1 (en) | 2001-03-30 |
WO1999024086A1 (en) | 1999-05-20 |
US6117123A (en) | 2000-09-12 |
JP4473329B2 (ja) | 2010-06-02 |
AU9674798A (en) | 1999-05-31 |
CA2588610A1 (en) | 1999-05-20 |
CA2309167A1 (en) | 1999-05-20 |
CA2588610C (en) | 2010-07-20 |
KR20010031996A (ko) | 2001-04-16 |
EP1034006B1 (en) | 2010-12-15 |
ES2354801T3 (es) | 2011-03-18 |
US5928213A (en) | 1999-07-27 |
EP1034006A4 (en) | 2004-07-28 |
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