JP2021520910A - 薬剤送達装置 - Google Patents
薬剤送達装置 Download PDFInfo
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- JP2021520910A JP2021520910A JP2020555768A JP2020555768A JP2021520910A JP 2021520910 A JP2021520910 A JP 2021520910A JP 2020555768 A JP2020555768 A JP 2020555768A JP 2020555768 A JP2020555768 A JP 2020555768A JP 2021520910 A JP2021520910 A JP 2021520910A
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
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Abstract
Description
2 近位セクション/用量設定機構
3 遠位セクション
12 ピストン戻しリング
16 ねじ式スリーブ
18 第2又は遠位チャンバー
19 第1又は近位チャンバー
32 スナップアーム
35 カートリッジ
50 カートリッジホルダ
Claims (15)
- 遠位部分及び近位部分を有する、マルチチャンバーカートリッジ内で混合される薬剤を送達する薬剤送達装置であって、
前記遠位部分は、ハウジング、用量設定ノブ、注射ボタン、用量送達中にハウジングの長手軸に沿って軸方向に移動可能なピストンロッド、及びピストンロッドを開始位置にリセットするように構成された戻しリングを有する用量設定機構を有し、
前記近位部分は、マルチチャンバーカートリッジを収容するように構成されたカートリッジホルダを有し、当該カートリッジホルダは前記遠位部分に取り付けるように構成されたねじ式スリーブを有し、当該ねじ式スリーブの回転が前記マルチチャンバーカートリッジ内での混合工程を実行する、薬剤送達装置。 - 前記ねじ式スリーブはねじ山を切られ、遠位部分のねじ部と協働するように構成されている、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記ねじ式スリーブは、前記ねじ式スリーブが前記カートリッジホルダの遠位部から遠位に延びる開始位置を有する、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記ねじ式スリーブは、前記ねじ式スリーブが前記カートリッジホルダの遠位部まで近位に引き込まれる終端位置を有する、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記ねじ式スリーブは外側面に位置するスナップアームをさらに有する、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記カートリッジホルダの遠位部は、前記スナップアームと相互作用し、係合するように構成された複数のスナップ窓をさらに有する、ことを特徴とする請求項5に記載の薬剤送達装置。
- 前記ねじ式スリーブが開始位置にあるとき、前記スナップアームは遠位スナップ窓と解除可能に係合しており、薬剤混合工程が完了したとき、前記ねじ式スリーブは前記カートリッジホルダの遠位部の内側に完全に位置決めされ、前記スナップアームは前記カートリッジホルダの近位スナップ窓と係合する、ことを特徴とする請求項5に記載の薬剤送達装置。
- 前記ねじ式スリーブが再利用可能に構成されている、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記カートリッジホルダ、前記マルチチャンバーカートリッジ及び前記ねじ式スリーブのアセンブリが使い捨て可能に構成されるとき、前記スナップアーム上の突起部が近位スナップ窓と解除不能及び永続的な態様で係合し、それにより前記ねじ式スリーブは前記カートリッジホルダの遠位部に対して回転できない、ことを特徴とする請求項5に記載の薬剤送達装置。
- 前記ねじ式スリーブが再利用可能であるとき、前記スナップアーム上の突起部が近位スナップ窓と係合して、解除可能な係合を形成し、それにより加えられる回転トルクが前記突起部を前記近位スナップ窓から外し、前記ねじ式スリーブを前記カートリッジホルダに対して回転させる、ことを特徴とする請求項5に記載の薬剤送達装置。
- 前記カートリッジホルダは、薬剤送達装置のユーザが薬剤混合工程中に前記マルチチャンバーカートリッジ内のスライド可能な第1ストッパの移動と前記カートリッジの中身を見ることができる2つの窓をさらに有する、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記マルチチャンバーカートリッジは2チャンバーカートリッジであり、前記カートリッジホルダは、前記カートリッジの第2チャンバーの視認を可能とする第1窓と、前記第2チャンバーに対して近位に位置する第1チャンバーの視認を可能とする第2窓をさらに有する、ことを特徴とする請求項1に記載の薬剤送達装置。
- 前記第2窓は、前記第1チャンバーと前記第2チャンバーの間に位置するバイパスを収容する狭窄セクションを有し、当該狭窄セクションは、前記2チャンバーカートリッジを固定の軸方向位置にてスナップインノッチに保持する、ことを特徴とする請求項12に記載の薬剤送達装置。
- 前記スナップインノッチは前記2チャンバーカートリッジを前記カートリッジホルダ内に永続的に位置決めし、それにより前記2チャンバーカートリッジは、前記カートリッジホルダの破壊によってのみ前記カートリッジホルダから取り外すことができる、ことを特徴とする請求項13に記載の薬剤送達装置。
- 前記混合工程が還元工程であり、凍結乾燥された薬が前記カートリッジの第1チャンバーに入れられている、ことを特徴とする請求項1に記載の薬剤送達装置。
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US62/688,153 | 2018-06-21 | ||
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US11969583B2 (en) | 2018-07-17 | 2024-04-30 | Medmix Switzerland Ag | Injection device with dose interruption fail safe |
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