JP6553689B2 - 多重使用の使い捨て注入ペン - Google Patents
多重使用の使い捨て注入ペン Download PDFInfo
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- JP6553689B2 JP6553689B2 JP2017161106A JP2017161106A JP6553689B2 JP 6553689 B2 JP6553689 B2 JP 6553689B2 JP 2017161106 A JP2017161106 A JP 2017161106A JP 2017161106 A JP2017161106 A JP 2017161106A JP 6553689 B2 JP6553689 B2 JP 6553689B2
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- 238000002347 injection Methods 0.000 title claims description 106
- 239000007924 injection Substances 0.000 title claims description 106
- 239000003814 drug Substances 0.000 claims description 40
- 229940079593 drug Drugs 0.000 claims description 33
- 238000012937 correction Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 2
- 210000005069 ears Anatomy 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000011295 pitch Substances 0.000 description 6
- 238000001802 infusion Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- ORMNNUPLFAPCFD-DVLYDCSHSA-M phenethicillin potassium Chemical compound [K+].N([C@@H]1C(N2[C@H](C(C)(C)S[C@@H]21)C([O-])=O)=O)C(=O)C(C)OC1=CC=CC=C1 ORMNNUPLFAPCFD-DVLYDCSHSA-M 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 206010069803 Injury associated with device Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- A61M5/31585—Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod performed by axially moving actuator, e.g. an injection button
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Description
投与量設定摘み2の環状肩部21は、セットバック部材9の拡大ヘッド91上に設けられた同じ形状をした歯または隆起部92と係合する一連の歯または隆起部22を備えることが好ましい。投与量設定摘みの歯22およびセットバック部材の歯92は、軸方向の逆向きに突出することが好ましい。投与量設定中、投与量設定摘み2は、セットバック部材9に対して、時計回りおよび反時計回りの両方向に自由に回転できる。これが起きると、投与量設定摘み2の複数の歯または隆起部22は、セットバック部材9のヘッド部分91に設けられた歯92を通り過ぎ、したがって、触覚信号またはカチッという音をもたらし、投与量の設定を知らせる。さらに以下に説明するように、投与量設定摘み2は、セットバック部材9が投与量設定摘み2とともに設定方向に回転することを防止する一方向ラチェットにより、設定中、セットバック部材9に対して回転することができる。
Claims (19)
- ハウジングと、
前記ハウジングの基端部での押し釦と、
投与量設定摘み(DSK)上での少なくとも1つの内部歯とDSKラチェット歯のリングとを含む前記投与量設定摘みと、
ドライバー上での少なくとも1つの外部歯とドライバーラチェット歯のリングとを含む前記ドライバーと、
前記投与量設定摘みと前記ドライバーとの間で動的に係合され、前記DSKラチェット歯に係合する少なくとも1つのDSKラチェットアームと前記ドライバーラチェット歯に係合する少なくとも1つのドライバーラチェットアームとを有する、クリッカーと
を具え、
前記ドライバーは、投与量設定中および投与量修正中においては前記投与量設定摘みに対して回転が妨げられる一方で、前記投与量設定摘みと共に軸方向へ移動し、前記押し釦が押されたときは、前記クリッカーが、末端方向へ移動して前記ドライバーを末端方向へ押すことにより、前記ドライバーの前記少なくとも1つの外部歯と前記投与量設定摘みの前記少なくとも1つの内部歯とが係合し、これによって、前記ドライバーは、注入中においては、前記投与量設定摘みと共に回転することを特徴とする薬剤注入ペン。 - 投与量設定中における前記クリッカーに対する前記投与量設定摘みの回転は、第1の耳で聞き取ることができるしるしを発生し、投与量修正中における前記クリッカーに対する前記ドライバーの回転は、第2の耳で聞き取ることができるしるしを発生することを特徴とする請求項1に記載の薬剤注入ペン。
- 投与量設定中および投与量修正中において、送りねじが、回転的にかつ軸方向に固定され、投与量注入中において、前記送りねじが前記ドライバーと共に回転することを特徴とする請求項1に記載の薬剤注入ペン。
- 注入中において、中空のピストン・ロッドが、前記送りねじの回転によって軸方向に移動することを特徴とする請求項3に記載の薬剤注入ペン。
- 前記投与量設定中および前記投与量修正中において、前記ドライバーは、送りねじに対して軸方向に移動することを特徴とする請求項4に記載の薬剤注入ペン。
- 前記送りねじは、キーを有し、前記ドライバーは、投与量設定中において、前記ドライバーが前記送りねじに対して軸方向に移動するように、前記キーを収容するスロットを有することを特徴とする請求項5に記載の薬剤注入ペン。
- 前記スロットの長さは、最大投与量を設定することに対応することを特徴とする請求項6に記載の薬剤注入ペン。
- 投与量停止部材が前記ドライバーに配置され、前記投与量停止部材は、投与量設定中および投与量修正中において、前記ドライバー上を軸方向に移動し、前記投与量停止部材は、投与量注入中において、前記ドライバーと共に回転することを特徴とする請求項1に記載の薬剤注入ペン。
- 前記投与量停止部材は、前記投与量設定摘みの内面に配置される突起に係合し、前記注入ペンに残っている薬剤の量を超える投与量を設定することを妨げることを特徴とする請求項8に記載の薬剤注入ペン。
- 複数の軸方向に延在するキー溝を有する制動部材をさらに具え、
前記ドライバーは、前記複数の軸方向に延在するキー溝に係合する少なくとも一つのキー溝ラチェットアームを有することを特徴とする請求項1に記載の薬剤注入ペン。 - 前記少なくとも1つのキー溝ラチェットアームは、投与量設定中および投与量修正中において、前記複数の軸方向に延在するキー溝に係合し、前記投与量設定摘みとともに前記ドライバーが回転することを妨げ、前記少なくとも1つのキー溝ラチェットアームは、投与量注入中において、前記軸方向に延在するキー溝を通り過ぎ、前記投与量設定摘みとともに前記ドライバーが回転することを可能にすることを特徴とする請求項10に記載の薬剤注入ペン。
- 投与量設定中および投与量修正中における前記ドライバーに対する前記投与量設定摘みの回転は、第1の耳で聞き取ることができるしるしを発生し、注入中における前記制動部材に対する前記ドライバーの回転は、第2の耳で聞き取ることができるしるしを発生することを特徴とする請求項11に記載の薬剤注入ペン。
- 前記DSKラチェット歯は、前記投与量設定摘みの基端部に位置していることを特徴とする請求項1に記載の薬剤注入ペン。
- 前記ドライバーラチェット歯は、前記ドライバーの基端部に位置していることを特徴とする請求項1に記載の薬剤注入ペン。
- 前記クリッカーのDSKラチェットアームは、円弧状のカンチレバーからなることを特徴とする請求項1に記載の薬剤注入ペン。
- 前記クリッカーのドライバーラチェットアームは、円弧状のカンチレバーからなることを特徴とする請求項1に記載の薬剤注入ペン。
- 前記クリッカーのDSKラチェットアームは、第1の半径を有する円弧状のカンチレバーからなり、前記クリッカーのドライバーラチェットアームは、前記第1の半径未満の第2の半径を有する円弧状のカンチレバーからなることを特徴とする請求項1に記載の薬剤注入ペン。
- 前記押し釦は、前記クリッカー内の中央開口に係合する末端突起を有することを特徴とする請求項1に記載の薬剤注入ペン。
- 前記ドライバーを回転させて前記少なくとも1つのキー溝ラチェットアームをラチェットすることによって生じる摩擦は、前記クリッカーに対して前記ドライバーを回転させて前記少なくとも1つのドライバーラチェットアームをラチェットすることによって生じる摩擦よりも大きいことを特徴とする請求項11に記載の薬剤注入ペン。
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