JP6925371B2 - 密封パウチ及び真空コンテナを用いる滅菌装置 - Google Patents
密封パウチ及び真空コンテナを用いる滅菌装置 Download PDFInfo
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Description
本発明概念のいくつかの実施形態によれば、滅菌剤を密封可能なラッピングパウチに直接注入し、これにより、滅菌プロセスの効率を改善するべく、不透過フィルムが用いられる。さらに、不透過フィルムの使用は、滅菌剤がパウチフィルムに吸収される又はパウチの表面上に残るときに起こり得るユーザの安全の問題を克服することを可能にし得る。
Claims (27)
- 被処理物を収納し、かつ不透過性フィルムを使って真空形成が可能な真空ラッパーと、
前記真空ラッパーがローディングされる真空コンテナと、
前記真空ラッパーに滅菌剤を注入する滅菌剤提供部と、
前記被処理物を加熱するため前記真空ラッパーを加熱するヒータと、を備え、
前記真空コンテナの圧力を前記真空ラッパーの圧力より高く維持し、前記ヒータにより加熱される前記真空ラッパーから前記被処理物に熱が効果的に伝達されるようにし、
前記真空ラッパーの接続部材は、前記滅菌剤を直接注入し、排気する経路であることを特徴とする滅菌装置。 - 前記真空コンテナの内部空気及び前記真空ラッパーの内部空気を排気する真空ポンプをさらに備え、
前記真空ラッパーの内部空気が排気される際に、前記真空ラッパーに注入された前記滅菌剤が排気されることを特徴とする請求項1に記載の滅菌装置。 - 前記真空ラッパーの内部で前記滅菌剤が拡散される空間が提供されることにより、前記真空ラッパーの内部圧力よりも前記真空コンテナの内部圧力がさらに低く制御されることを特徴とする請求項2に記載の滅菌装置。
- 前記真空ラッパーから前記滅菌剤を排気するために、排気された空気を選択的に浄化することを特徴とする請求項1に記載の滅菌装置。
- 前記真空コンテナから排気された空気を浄化せず、前記真空ラッパーから排気された空気を浄化することで選択的浄化が行われることを特徴とする請求項2に記載の滅菌装置。
- 前記排気された空気に含まれる前記滅菌剤を浄化するために、前記排気された空気をプラズマ放電を用いて分解することを特徴とする請求項2に記載の滅菌装置。
- 前記真空ラッパーと前記真空コンテナとの圧力差を用いて前記真空ラッパーを収縮させることを特徴とする請求項2に記載の滅菌装置。
- 前記真空ラッパーは、前記滅菌剤が注入された後、前記真空コンテナとの圧力差によって収縮するか、および/または拡大して前記滅菌剤による滅菌プロセスを効率的にすることを特徴とする請求項2に記載の滅菌装置。
- 前記真空コンテナの内部圧力を増加させるために空気を注入する空気注入部と、をさらに備え、
前記空気注入部は、外部空気を提供されてフィルタするエアフィルタを備えて構成されることを特徴とする請求項2に記載の滅菌装置。 - 前記真空ラッパーは、前記空気注入部を通じて空気を注入されることを特徴とする請求項9に記載の滅菌装置。
- 前記エアフィルタは、前記外部空気から粒子及び細菌を除去することができるHEPA(High
Efficiency Particulate Air)フィルタであることを特徴とする請求項9に記載の滅菌装置。 - 前記滅菌剤を加熱して気化させる気化器を備え、
前記気化器の連結端は、第1弁を介して前記接続部材に連結されるとともに、第2弁を介して前記真空ポンプに連結されている、ことを特徴とする請求項2に記載の滅菌装置。 - 前記気化器の前記連結端は、前記第2弁を介してさらに、空気注入部が連結されていることを特徴とする請求項12に記載の滅菌装置。
- 被処理物を収納して密封した真空ラッパーを真空コンテナにロードする段階と、
前記真空コンテナ及び前記真空ラッパーを排気する段階と、
前記真空コンテナ内に配置されて真空状態に維持された前記真空ラッパーに滅菌剤を注入する段階と、
前記真空コンテナを大気圧にベントする段階と、を含み、
前記真空コンテナの圧力を前記真空ラッパーの圧力より高く維持し、ヒータにより加熱される前記真空ラッパーから前記被処理物に熱が効果的に伝達されるようにする、ことを特徴とする滅菌方法。 - 前記真空コンテナ内に配置された状態で前記真空ラッパーから注入された滅菌剤を排気する段階をさらに含むことを特徴とする請求項14に記載の滅菌方法。
- 前記真空ラッパーは真空形成が可能な不透過性材質に形成されたことを特徴とする請求項14に記載の滅菌方法。
- 前記真空ラッパーは、前記滅菌剤を注入して内部のガスを排気するための接続部材を備えることを特徴とする請求項14に記載の滅菌方法。
- 前記真空ラッパーに滅菌剤が供給された状態で、前記真空ラッパーの圧力は前記真空コンテナの圧力よりも高いことを特徴とする請求項14に記載の滅菌方法。
- 前記真空ラッパーで前記滅菌剤が排気する過程で、前記真空ラッパーの圧力は前記真空コンテナの圧力よりも高いか、または同一であることを特徴とする請求項14に記載の滅菌方法。
- 前記真空ラッパー及び前記真空コンテナの圧力を独立的に制御して前記真空ラッパーの体積を制御する段階をさらに含むことを特徴とする請求項14に記載の滅菌方法。
- 前記体積を制御する段階は、前記真空ラッパーの圧力を前記真空コンテナの圧力よりも高めて前記真空ラッパーが膨張し、前記滅菌剤が注入または排気されるのに必要な経路が確保されることを含む段階であることを特徴とする請求項20に記載の滅菌方法。
- 前記真空コンテナの内部に設けられたヒータによって前記真空ラッパーは50℃以上に加熱されることを特徴とする請求項14に記載の滅菌方法。
- 前記滅菌剤は、濃度50重量パーセント以上の過酸化水素であることを特徴とする請求項14に記載の滅菌方法。
- 前記真空ラッパーから前記滅菌剤を排気するために排気された空気を選択的に浄化するために、前記真空コンテナから排気された空気を浄化せず、前記真空ラッパーから排気された空気を浄化する段階をさらに含むことを特徴とする請求項15に記載の滅菌方法。
- 前記排気された空気に含まれた前記滅菌剤を浄化するために、前記排気された空気をプラズマ放電を用いて分解することを特徴とする請求項24に記載の滅菌方法。
- 前記真空ラッパーの内部圧力を前記真空コンテナの内部圧力よりも低く制御することで前記真空ラッパーを収縮させ、収縮させた前記真空ラッパーに外部空気を注入させて前記被処理物を効果的に加熱できるようにすることを特徴とする請求項20に記載の滅菌方法。
- 前記真空コンテナに外部空気を供給する際に、前記外部空気から粒子及び細菌を除去することができるHEPA(High Efficiency Particulate Air)フィルタを通じてフィルタリングした空気を注入する段階をさらに含むことを特徴とする請求項14に記載の滅菌方法。
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