JP2006042980A - 医療用複室容器 - Google Patents
医療用複室容器 Download PDFInfo
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- JP2006042980A JP2006042980A JP2004225622A JP2004225622A JP2006042980A JP 2006042980 A JP2006042980 A JP 2006042980A JP 2004225622 A JP2004225622 A JP 2004225622A JP 2004225622 A JP2004225622 A JP 2004225622A JP 2006042980 A JP2006042980 A JP 2006042980A
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- responsive
- chamber container
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- polymer compound
- chamber
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Abstract
【解決手段】 薬剤を収納する複数の収納室および各収納室間を仕切る仕切り用封止部を有し、少なくともひとつの前記収納室に排出路を介して連通する排出口を備え、前記仕切り用封止部が、使用に際して前記各収納室を連通させるように開封可能に構成された医療用複室容器であって、
前記排出路に、pH応答性多孔質フィルターが設けられており、
このpH応答性多孔質フィルターは、連通前の薬剤のpHに対しては、該薬剤が通過不能な孔径にまで縮小し、連通後の混合薬液のpHに対しては、該混合薬液が通過可能な孔径にまで拡大するように構成されていることを特徴とする医療用複室容器。
【選択図】なし
Description
前記排出路に、pH応答性多孔質フィルターが設けられており、
このpH応答性多孔質フィルターは、連通前の薬剤のpHに対しては、該薬剤が通過不能な孔径にまで縮小し、連通後の薬剤の混合薬液のpHに対しては、該混合薬液が通過可能な孔径にまで拡大するように構成されていることを特徴とする医療用複室容器が、連通前の薬剤を通過させず、連通後の薬剤の混合薬液が通過させることができることを知見し、用時混合のし忘れといった医療過誤による危険性を排除できることを見出した。
また、本発明者らは、上記種々の知見を得た後、さらに検討を重ね、本発明を完成させるに至った。
[1] 薬剤を収納する複数の収納室および各収納室間を仕切る仕切り用封止部を有し、少なくともひとつの前記収納室に排出路を介して連通する排出口を備え、前記仕切り用封止部が、使用に際して前記各収納室を連通させるように開封可能に構成された医療用複室容器であって、
前記排出路に、pH応答性多孔質フィルターが設けられており、
このpH応答性多孔質フィルターは、連通前の薬剤のpHに対しては、該薬剤が通過不能な孔径にまで縮小し、連通後の混合薬液のpHに対しては、該混合薬液が通過可能な孔径にまで拡大するように構成されていることを特徴とする医療用複室容器、
[2] pH応答性多孔質フィルターが、pH応答性高分子化合物と多孔質支持体との複合体である前記[1]記載の医療用複室容器、
[3] pH応答性多孔質フィルターが、塩基性基および/または酸性基を有する高分子化合物の架橋体と、デプスフィルター、メンブレンフィルターまたは筒状の不織布との複合体である前記[2]記載の医療用複室容器、
[4] pH応答性多孔質フィルターが、塩基性基を有する高分子化合物の架橋体とデプスフィルターとの複合体である前記[2]記載の医療用複室容器、
[5] pH応答性多孔質フィルターが、キトサンの架橋体とデプスフィルターとの複合体である前記[2]記載の医療用複室容器、
[6] 多孔質支持体の構成材料が、セルロース、セルロースアセテート、ポリエーテルスルホン、ポリカーボネート、ポリビニリデンフロライド、ポリ四フッ化エチレン、ガラス繊維、ポリエステル、ポリプロピレンまたはステンレスであることを特徴とする前記[2]記載の医療用複室容器、
[7] 前記[1]〜[6]のいずれかに記載の医療用複室容器の複数室の一室にアミノ酸溶液が収納され、他の少なくとも一室に糖溶液が収納されていることを特徴とする輸液製剤、
[8] 排出路を介して排出口に連通する収納室に糖溶液が収納されている前記[7]記載の輸液製剤、
[9] 糖溶液がpH4〜6であり、混合薬液がpH6〜8である前記[8]記載の輸液製剤、および
[10] 多孔質支持体の存在下に、塩基性基および/または酸性基を有する高分子化合物と架橋剤とを架橋反応させることを特徴とするpH応答性多孔質フィルターの製造方法、
に関する。
前記排出路に、pH応答性多孔質フィルターが設けられており、
このpH応答性多孔質フィルターは、連通前の薬剤のpHに対しては、該薬剤が通過不能な孔径にまで縮小し、連通後の薬剤の混合薬液のpHに対しては、該混合薬液が通過可能な孔径にまで拡大するように構成されていることを特徴とする。
上記pH応答性多孔質フィルターは、上記排出路に設けられており、連通前の薬剤のpHに対しては、該薬剤が通過不能な孔径にまで縮小し、連通後の薬剤の混合薬液のpHに対しては、該混合薬液が通過可能な孔径にまで拡大するように構成されている。
上記架橋体は、官能性高分子化合物と、架橋剤とを、常法により、縮合反応や付加反応させることにより製造される。上記架橋剤は、本発明の目的を阻害しない限り特に限定されず、公知のものであってよい。例えば、活性水素基を2個以上含有する化合物などが挙げられ、より具体的には、例えば、ジアルデヒド類(例えばグルタルアルデヒド等)、エピクロロヒドリン、ジグリシジルエーテル、ジイソシアネート類(例えばヘキサメチレンジイソシアネート等)、ジオール、ポリオールなどが挙げられる。また、架橋の程度は、官能性高分子化合物の種類等に応じて適宜選択することができる。
例えば上記官能性高分子化合物がアミノ基を有している場合、上記官能性高分子化合物の架橋体は、常法に従い、過酸化水素等を用いてグルタルアルデヒド等のジアルデヒド類を酸化し、得られたジカルボン酸と官能性高分子化合物とを脱水縮合させるか、架橋剤としてイソシアネート基を2個以上含有するポリイソシアネート化合物を用いて付加反応させるか、または酸の存在下にジアルデヒド類と脱水縮合させてシッフ塩基を形成させることにより製造される。
この際の反応条件は、架橋剤の種類などにより適宜に設定され得るので、一概にはいえないが、例えば架橋剤としてグルタルアルデヒドを用いた場合、反応温度が通常5〜80℃であり、好ましくは25〜35℃であり、反応時間が通常0.5時間以上、好ましくは1.0時間以上である。上記架橋反応における架橋剤の使用量は、上記高分子化合物に対して、通常0.05〜0.5質量%であり、好ましくは0.1〜0.3質量%である。
前記アミノ酸溶液としては、公知のアミノ酸輸液を用いてよい。例えば、アミノ酸溶液中に含有されるアミノ酸としては、必須アミノ酸、非必須アミノ酸および/またはこれらのアミノ酸の塩、エステルまたはN−アシル体などが挙げられる。より具体的には、例えば、L−イソロイシン、L−ロイシン、L−リジン、L−メチオニン、L−フェニルアラニン、L−スレオニン、L−トリプトファン、L−バリン、L−アラニン、L−アルギニン、L−アスパラギン酸、L−システイン、L−グルタミン酸、L−ヒスチジン、L−プロリン、L−セリン、L−チロシンまたはグリシンなどのアミノ酸が挙げられる。また、これらアミノ酸はL−アルギニン塩酸塩、L−システイン塩酸塩、L−グルタミン酸塩酸塩、L−ヒスチジン塩酸塩、L−リジン塩酸塩等の無機酸塩や、L−リジン酢酸塩、L−リジンリンゴ酸塩等の有機酸塩、L−チロシンメチルエスエル、L−メチオニンメチルエスエル、L−メチオニンエチルエステルなどのエステル体、N−アセチル−L−システイン、N−アセチル−L−トリプトファン、N−アセチル−L−プロリンなどのN−置換体、L−チロシル−L−チロシン、L−アラニル−L−チロシン、L−アルギニル−L−チロシン、L−チロシル−L−アルギニンなどのジペプチド類の形態でもよい。
全ての溶液を混合した溶液中にアミノ酸は、以下の配合量(遊離形態で換算)で配合されていることが好ましい。
さらに、前記糖溶液は、ビタミンB1が配合されていてもよい。ビタミンB1の配合量は、全ての溶液を混合した溶液中に、0.1〜30mg/Lとなるようにするのが好ましい。
前記電解質は、公知のものを用いてよい。かかる電解質としては、例えば、ナトリウム、カリウム、マグネシウム、カルシウム、塩素、リンなど無機成分の水溶性塩、例えば塩化塩、硫酸塩、酢酸塩、グルコン酸塩、乳酸塩、グリセロリン酸塩などが挙げられる。
配合される鉄の供給源としては、塩化鉄、硫酸鉄などの鉄の無機酸塩、またはグルコン酸鉄、クエン酸鉄、フマル酸鉄、乳酸鉄などの鉄の有機酸塩が挙げられ、とりわけ塩化鉄(たとえば、塩化第二鉄)が好ましい。また、鉄は、鉄コロイド溶液の形で配合するのが好ましい。鉄コロイド溶液は、公知のものでよい。かかる鉄コロイド溶液は、たとえば、コンドロイチン硫酸ナトリウムを蒸留水に溶解し、これに塩化第二鉄溶液および水酸化ナトリウム溶液を交互に加え、さらに蒸留水を加えることにより調製できる。
即ち、混合等した後の混合薬液のpHが高くなる場合は、上記pH応答性多孔質フィルターは、上記排出路へ流入する液体のpHが設定値よりも低いと孔径が縮小し、上記液体のpHが設定値よりも高いと孔径が拡大するように構成される。
図1は本発明の実施例を示し、図1は輸液製剤の一部破断図である。
保管中は前記の両収納室(4a・4b)が前記の弱シール部(3)で区画されているので、各収納室(4a・4b)に収納された両薬剤(5a・5b)は互いに混合されることがなく、混合による経時変化が防止される。このとき、上記排出路(9)には第2薬剤(5b)が流入し、この第2薬剤(5b)のpHは6以下であるので、pH応答性多孔質フィルター(12)の孔径は第2薬剤(5b)が通過不能にまで縮小している。
カチオン性高分子化合物(和光純薬工業、製品名「キトサン100」)2質量部に1mol/L塩酸を加え、全量を100質量部とした。この液125質量部に架橋剤(和光純薬工業、20%グルタルアルデヒド溶液)1部を加え、2%キトサン溶液とした。この液に支持体(ミリポア、プレフィルターAP)を浸漬し、充分に液をなじませた後取り出し、2mol/L水酸化ナトリウム水溶液に1時間静置した。その後、支持体を取り出し、80℃で30分間加熱した後、室温で乾燥させた。これを0.1mol/L塩酸及び水で洗浄液のpHが8以下となるまで充分洗浄した後、室温で乾燥させて検体とした。
検体をホルダーに装着し、糖・電解質液(pH約5、表1)を接触させると、糖・電解質液は検体を、通常の輸液投与時の静水圧では通過しなかった。次に検体を、糖・電解質液350質量部にアミノ酸・電解質液(表2)150質量部を添加した混合液(pH約7、表3)に接触させると、混合液は検体を通過し、その流速は20ml/分であった。
2 容器本体
3 仕切り用封止部(弱シール部)
4 収納室
4a 第一収納室
4b 第二収納室
5 薬剤
5a 第一薬剤
5b 第二薬剤
6 周縁部
7 掛吊穴
8 排出部
9 排出路
10 排出口
11 ゴム栓
12 pH応答性多孔質フィルター
12a pH応答性高分子化合物と多孔質支持体との複合体であって、多孔質支持体がデプスフィルターであるpH応答性多孔質フィルター
12b pH応答性高分子化合物と多孔質支持体との複合体であって、多孔質支持体がメンブレンフィルターであるpH応答性多孔質フィルター
12c pH応答性高分子化合物と多孔質支持体との複合体であって、多孔質支持体が筒状の不織布であるpH応答性多孔質フィルター
Claims (10)
- 薬剤を収納する複数の収納室および各収納室間を仕切る仕切り用封止部を有し、少なくともひとつの前記収納室に排出路を介して連通する排出口を備え、前記仕切り用封止部が、使用に際して前記各収納室を連通させるように開封可能に構成された医療用複室容器であって、
前記排出路に、pH応答性多孔質フィルターが設けられており、
このpH応答性多孔質フィルターは、連通前の薬剤のpHに対しては、該薬剤が通過不能な孔径にまで縮小し、連通後の混合薬液のpHに対しては、該混合薬液が通過可能な孔径にまで拡大するように構成されていることを特徴とする医療用複室容器。 - pH応答性多孔質フィルターが、pH応答性高分子化合物と多孔質支持体との複合体である請求項1記載の医療用複室容器。
- pH応答性多孔質フィルターが、塩基性基および/または酸性基を有する高分子化合物の架橋体と、デプスフィルター、メンブレンフィルターまたは筒状の不織布との複合体である請求項2記載の医療用複室容器。
- pH応答性多孔質フィルターが、塩基性基を有する高分子化合物の架橋体とデプスフィルターとの複合体である請求項2記載の医療用複室容器。
- pH応答性多孔質フィルターが、キトサンの架橋体とデプスフィルターとの複合体である請求項2記載の医療用複室容器。
- 多孔質支持体の構成材料が、セルロース、セルロースアセテート、ポリエーテルスルホン、ポリカーボネート、ポリビニリデンフロライド、ポリ四フッ化エチレン、ガラス繊維、ポリエステル、ポリプロピレンまたはステンレスであることを特徴とする請求項2記載の医療用複室容器。
- 請求項1〜6のいずれかに記載の医療用複室容器の複数室の一室にアミノ酸溶液が収納され、他の少なくとも一室に糖溶液が収納されていることを特徴とする輸液製剤。
- 排出路を介して排出口に連通する収納室に糖溶液が収納されている請求項7記載の輸液製剤。
- 糖溶液がpH4〜6であり、混合薬液がpH6〜8である請求項8記載の輸液製剤。
- 多孔質支持体の存在下に、塩基性基および/または酸性基を有する高分子化合物と架橋剤とを縮合させることを特徴とするpH応答性多孔質フィルターの製造方法。
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JP2013503795A (ja) * | 2009-09-09 | 2013-02-04 | カーイーエステー−オイローパ フォルシュングスゲゼルシャフト エムベーハー | 液体製剤を計量放出する計量装置、本発明による計量装置の充填方法、及び該計量装置の使用 |
CN102961254A (zh) * | 2012-11-30 | 2013-03-13 | 湖南科伦制药有限公司 | 一种可防止误操作的粉液双室袋及其制备方法 |
WO2016045599A1 (zh) * | 2014-09-25 | 2016-03-31 | 胡绍勤 | 一种精密过滤输液容器 |
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JP2013503795A (ja) * | 2009-09-09 | 2013-02-04 | カーイーエステー−オイローパ フォルシュングスゲゼルシャフト エムベーハー | 液体製剤を計量放出する計量装置、本発明による計量装置の充填方法、及び該計量装置の使用 |
CN102961254A (zh) * | 2012-11-30 | 2013-03-13 | 湖南科伦制药有限公司 | 一种可防止误操作的粉液双室袋及其制备方法 |
WO2016045599A1 (zh) * | 2014-09-25 | 2016-03-31 | 胡绍勤 | 一种精密过滤输液容器 |
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