Damping system for injection device

An injection device includes: a drive spring within a housing; a first drive member that transmits drive from the drive spring to a plunger disposed within a medicament container; and a damper disposed concentrically with respect to the first drive member. The damper is longitudinally fixed relative...

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Bibliographische Detailangaben
Hauptverfasser: GORSKI, STEPHEN, E, PAYNE ANDREW DEAN, GUSSLEIN JOHN G, FAUCHER PAUL D
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:An injection device includes: a drive spring within a housing; a first drive member that transmits drive from the drive spring to a plunger disposed within a medicament container; and a damper disposed concentrically with respect to the first drive member. The damper is longitudinally fixed relative to the shell. The first drive member moves along the longitudinal axis relative to the damper under the influence of the drive spring. The damper is in frictional engagement with a surface of the first drive member during movement of the drive member relative to the damper. A method of manufacturing an injection device is also described. 一种注射装置包括:在壳体内的驱动弹簧;第一驱动部件,所述第一驱动部件将驱动从所述驱动弹簧传递到设置在药物容器内的柱塞;以及阻尼器,所述阻尼器相对于所述第一驱动部件同心地布置。所述阻尼器相对于所述壳体纵向固定。所述第一驱动部件在所述驱动弹簧的影响下相对于所述阻尼器沿着所述纵向轴线移动。所述阻尼器在所述驱动部件相对于所述阻尼器移动期间与所述第一驱动部件的表面摩擦接合。还描述了一种注射装置的制造方法。