JP2015213823A - ダイヤルバックおよび最終投与量制御を備える注射ペン - Google Patents
ダイヤルバックおよび最終投与量制御を備える注射ペン Download PDFInfo
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- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
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- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31583—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
- 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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- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
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- A61M5/3159—Dose expelling manners
- A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
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- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31535—Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose
- A61M5/31543—Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose piston rod reset means, i.e. means for causing or facilitating retraction of piston rod to its starting position during cartridge change
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- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
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Abstract
【解決手段】ハウジング;所望の注射投与量を設定する、ハウジングに関して回転可能な投与量設定ノブ220;ねじ山要素を備え、対応するねじ山の係合を介して第1の方向に前進可能な主ねじ226;主ねじに対して回転が固定され、主ねじを第1の方向に回転可能であり、主ねじを回転させて第1の方向に前進させるドライバー224;ドライバーに対して回転が固定されるセットバック部材222;および投与量設定ノブとセットバック部材との間に位置付けられるクリック要素であって、投与量設定ノブの内面を係合させる第1のアーム部材、およびセットバック部材の外面を係合させる第2のアーム部材を含むクリック要素;を含み、ここで、第1および第2のアームのうちの1つは、投与量設定ノブがハウジングに関して回転するとき、可聴信号を生成する医薬品注射ペン。
【選択図】図16A
Description
Claims (7)
- ハウジング;
所望の注射投与量を設定するために前記ハウジングに関して回転可能な投与量設定ノブ;
ねじ山要素を備え、および対応するねじ山の係合を介して第1の方向に前進可能な主ねじであって、前記第1の方向は、カートリッジから医薬品を放出する方向である主ねじ;
それらの間の相対的な回転を防止するために前記主ねじに対して回転が固定されるドライバーであって、前記主ねじを第1の方向に回転可能であり、前記主ねじを回転させ、および前記主ねじを第1の方向に前進させるドライバー;
それらの間の相対的な回転を防止するために、前記ドライバーに対して回転が固定されるセットバック部材;および
前記投与量設定ノブと前記セットバック部材との間に位置付けられるクリック要素であって、前記投与量設定ノブの内部表面を係合させる第1のアーム部材、および前記セットバック部材の外部表面を係合させる第2のアーム部材を含むクリック要素;
を含み、
ここで、前記第1および第2のアームのうちの1つは、前記投与量設定ノブが前記ハウジングに関して回転するとき、可聴信号を生成することを特徴とする医薬品注射ペン。 - 前記投与量設定ノブの前記内部表面および前記セットバック部材の前記外部表面は、それぞれ複数の歯を含むことを特徴とする請求項1に記載の医薬品注射ペン。
- 前記投与量設定ノブの前記歯は、前記投与量設定ノブと前記クリック要素との間の第1の方向への相対的な回転を可能にするように構成され、および前記セットバック部材の前記歯は、前記セットバック部材と前記クリック要素との間の第2の反対方向への相対的な回転を可能にするように構成されることを特徴とする請求項2に記載の医薬品注射ペン。
- 前記投与量設定ノブが前記クリック要素に関して前記第1の方向に回転するとき、前記第1のアームが可聴信号を生成し、および前記セットバック部材が前記クリック要素に関して前記第2の方向に回転するとき、前記第2のアームが可聴信号を生成することを特徴とする請求項3に記載の医薬品注射ペン。
- ハウジング;
前記ハウジングに関して回転可能であって、所望の注射投与量を設定するための投与量設定ノブ;
ねじ山要素を備え、対応するねじ係合によって第1の方向に前進可能な主ねじであって、前記第1の方向は、カートリッジから医薬品を放出する方向である主ねじ;
それらの間の相対的な回転を防止するために前記主ねじに対して回転が固定されるドライバーであって、第1の方向に回転可能であり、前記主ねじを回転させ、および前記主ねじを前記第1の方向に前進させるドライバー;および
それらの間の相対的な回転を防止するために前記ドライバーに対して回転が固定されるセットバック部材;
を含み、
ここで、前記ハウジングは、前記ハウジング内の表面に提供される可撓性の突起をさらに含み、および前記投与量設定ノブは、前記突起を係合して設定投与量の注射が完了すると可聴信号を生成する可撓性のタブ要素さらに含むことを特徴とする医薬品注射ペン。 - 前記投与量設定ノブが前記ハウジングに対して回転して所望の注射投与量を設定するとき、前記可撓性のタブ要素は、前記突起の第1のエッジとハウジングの側壁との間を越えて、前記突起を前記側壁から離れて撓ませることを特徴とする請求項5に記載の医薬品注射ペン。
- 前記投与量設定ノブは、投与量を注射するための反対方向、およびこの方向に回転し、前記可撓性タブは、前記可撓性タブを半径方向内側に撓ませて、前記突起の第2のエッジを係合し、ここで、前記可撓性タブが前記突起の端を通過すると、前記タブは初期位置に戻り、同時に、注射終了を示す可聴信号を提供することを特徴とする請求項6に記載の医薬品注射ペン。
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |