Axel Forstreuter,Michael Helmer,Claudia Matthias,Peter Nober,Reza Shahbazfar,Benjamin Schäfer,Leo Zeimetz,Uwe Dasbach
申请号：
US13262921
公开号：
US20120071836A1
申请日:
2010.04.20
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The present invention relates to a drive mechanism for a drug delivery device as well as to a drug delivery device for dispensing of a dose of a medicinal product, wherein the drive mechanism comprises:a holder for a product-containing cartridge, the cartridge having a piston slidably arranged therein in an axial direction,a piston rod to be operably engaged with the cartridge's piston for dispensing of a dose of the medicinal product,at least one adjusting member slidably arranged in axial direction relative to the piston and/or relative to the piston rod for eliminating axial clearance between the piston and the piston rod,an interlock means adapted to interact with the adjusting member for mutually locking in position the piston and the piston rod irrespective of the relative distance between piston and piston rod.
