Marc Schader,Michael Helmer,Sebastian Braun,Michael Varga
申请号：
US15778129
公开号：
US20180326155A1
申请日:
2016.11.21
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A medicament injection device comprising: a main body configured to receive a medicament cartridge sealed with a penetrable barrier, a needle holder holding a needle, a needle sleeve arranged around at least a portion of the needle holder and needle, and arranged to be axially movable with respect to the main body and a retainer coupled to the needle holder and to the needle sleeve and axially movable with respect to the main body along the main axis of the device wherein the retainer is coupled to the needle holder so that, upon displacement of the needle sleeve and the retainer by a predefined distance towards a proximal end of the main body, the needle holder and needle are displaced axially towards the proximal end of the main body and decouple from the retainer and wherein the needle sleeve is configured to disengage from the needle holder upon axial displacement of the needle sleeve in the proximal direction beyond the predefined distance.
