Stefan Bayer,Daniel Berning,Philippe Blank,Wolfgang Pelzer,Björn Wilden
申请号：
US14783552
公开号：
US20160058949A1
申请日:
2014.04.08
申请国别(地区):
US
年份:
2016
代理人:
摘要：
The present invention relates to a drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament, the mechanism comprising: a housing (20), a piston rod (120) to operably engage with a piston (14) of a cartridge (12) to displace the piston (14) in a distal direction (1), a rotatable member (80) arranged on an axially extending axis of rotation (4) in the housing (20), said rotatable member (80) being rotatable in a dose incrementing direction (5) against the action of a spring element (78) and being operably engageable with the piston rod (120) during dose dispensing, a clutch member (150) comprising at least one radially displaceable clutch element (153) to engage with a rim (82) of the rotatable member (80) with variably adjustable strength.
