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1. 发明公开

EP1601397A2 IMPROVEMENTS IN AND RELATING TO DRIVE MECHANISMS SUITABLE FOR USE IN DRUG DELIVERY DEVICES 有权转让
标题翻译： VERBESSERUNGEN ANTRIEBSMECHANISMEN MIT ANWENDUNG在VERABREICHUNGSVORRICHTUNGEN
公开(公告)号：EP1601397A2
公开(公告)日：2005-12-07
申请号：EP04716595.6
申请日：2004-03-03
申请人： DCA Design International Limited
发明人： VEASY, Robert, Frederick , LANGLEY, Christopher Nigel , WIMPENNY, Steven
IPC分类号： A61M5/315 , A61M5/24 , A61M5/32
CPC分类号： A61M5/31528 , A61M5/24 , A61M5/2422 , A61M5/31501 , A61M5/31511 , A61M5/31526 , A61M5/31533 , A61M5/31541 , A61M5/3155 , A61M5/31551 , A61M5/3156 , A61M5/31583 , A61M5/31585 , A61M5/31593 , A61M2205/581 , A61M2205/582
摘要： The invention relates to a drive mechanism for use in a drug delivery device for dispensing a medicinal product comprising: a housing (154) having an external thread (150); a piston rod (20") having a generally circular section; a dose dial sleeve (70"'), which is threadedly engaged with the external thread (150) of the housing (154) and being rotatable with respect to the housing (154); a drive sleeve (30'), located between the housing (154) and the piston rod (20"), a clutch means (60"") located between the drive sleeve (30') and the dose dial sleeve (70"'), in which e) when the dose dial sleeve (70"') and the drive sleeve (30') are de-coupled by the said clutch means (60""), rotation of said dose dial sleeve (70"') with respect to the said drive sleeve (30') is allowed; and f) when the dose dial sleeve (70"') and drive sleeve (30') are coupled by the said clutch means (60""), rotation of the dose dial sleeve (70"') with respect to the said drive sleeve (30') is prevented, A nut (40') is located between the drive sleeve (30') and the housing (154), the nut (40') having a thread that is engaged with a thread of the drive sleeve (30') and the nut (40') and the housing (154) being keyed together by means of longitudinally directed splines to prevent rotation between the nut (40') and the housing (154) while allowing relative longitudinal movement therebetween.
摘要翻译：本发明涉及一种用于药物输送装置用于分配医药产品的驱动机构，包括：具有外螺纹（150）的壳体（154）; 具有大致圆形截面的活塞杆（20“）;与所述壳体（154）的外螺纹（150）螺纹接合且能够相对于壳体（154）旋转的剂量拨片套筒（70”'））; 位于所述壳体（154）和所述活塞杆（20“）之间的驱动套筒（30'），位于所述驱动套筒（30'）和所述剂量拨号套筒（70”）之间的离合器装置（60“ ），其中e）当所述剂量拨盘套筒（70“'）和所述驱动套筒（30'）通过所述离合器装置（60”）解耦时，所述剂量拨号套筒（70“'）的旋转相对于所述驱动套筒（30'）被允许; 以及f）当所述剂量拨盘套筒（70“'）和驱动套筒（30'）通过所述离合器装置（60”）联接时，剂量拨片套筒（70“'）相对于所述驱动器防止套筒（30'），螺母（40'）位于驱动套筒（30'）和壳体（154）之间，螺母（40'）具有与驱动套筒（30'）和螺母（40'）和壳体（154）通过纵向定向的花键键合在一起，以防止螺母（40'）和壳体（154）之间的旋转，同时允许它们之间的相对纵向运动。

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