BERNING, Daniel,PELZER, Wolfgang,WILDEN, Björn,BAYER, Stefan,BLANK, Philippe
申请号：
DK14718364
公开号：
DK2983769T3
申请日:
2014.04.08
申请国别(地区):
DK
年份:
2017
代理人:
摘要：
A drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament includes a housing, a piston rod, a dose indicating member with a dose size information thereon, and a drive wheel. The piston rod engages with a piston of a cartridge for displacing the piston in a distal direction. The dose indicating member is connected to a spring element and is rotatable in a dose incrementing direction against the action of the spring element for setting a dose. The drive wheel is operably engaged with the piston rod for displacing the piston rod in the distal direction for dose dispensing. The dose indicating member is engageable with the drive wheel during dose dispensing to transfer a force to the drive wheel when driven by the relaxing spring element in a dose decrementing direction.
