Christopher James Smith,Stephen David Butler,Mark Phillip Horlock
申请号：
US14401945
公开号：
US09597457B2
申请日:
2013.05.28
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A piston rod for a drug delivery device comprises a main body and an engagement means for engaging the piston rod with a part of the drug delivery device. The engagement means are retractable relatively the main body for enabling a disengagement of the engagement means from the part of the drug delivery device.
