Jonas Törnsten,Max Blomqvist,Joël Fontannaz,Elise Gortchacow
申请号：
US16906744
公开号：
US20200316304A1
申请日:
2020.06.19
申请国别(地区):
US
年份:
2020
代理人:
摘要：
An exchangeable cartridge for an injection device is disclosed. The cartridge (3) comprises a container (4) and a plunger (10) connectable with a plunger rod (9). The container receives the plunger rod from its rear end. The plunger comprises a rod connector (12) connectable with a front portion (13), and the rod connector has a base portion (24), an outer wall section (15), an inner wall section (16), and a rod stop portion (17) encircled by the inner wall section. The inner wall section comprises several tongues (22) protruding rearwards from the base portion and defining an entrance opening (18) for the plunger rod. The inner wall section receives a front portion (13) of the plunger rod through the entrance, and the tongues are provided with retaining portions arranged to retain the front end portion during retraction of the plunger rod within the housing.
