QURISHI RAMATULLAH,OTTEN MARTIN,TRINKLE STEFAN,MÖCKEL JÖRN,THIEL SEBASTIAN
申请号：
IN2800CHN2014
公开号：
IN2800CHN2014A
申请日:
2014.04.11
申请国别(地区):
IN
年份:
2015
代理人:
摘要：
The present invention relates to a piston for a cartridge to be filled with a medicament the piston comprising: a first piston member (12) comprising a first material and forming a distal end face (22) of the piston a second piston member (14) comprising a second material of lower compressibility compared to the first material wherein the second piston member (14) is arranged in a cupped receptacle (16) of the first piston member (12) and provides a thrust receiving surface (25) at a proximal end (24) of the piston.
