首页>
外国专利>
DRUG INJECTION DEVICE WITH RESETTABLE MECHANISM ALLOWING PISTON ROD RETRACTION UPON DRUG CARTRIDGE CHANGE
DRUG INJECTION DEVICE WITH RESETTABLE MECHANISM ALLOWING PISTON ROD RETRACTION UPON DRUG CARTRIDGE CHANGE
展开▼
机译:具有可重置机制的药物注射装置,允许在药筒变化时活塞杆缩回
展开▼
页面导航
摘要
著录项
相似文献
摘要
A drug delivery device for selecting and dispensing a number of user variable doses of a medicament. The device comprises a housing, a dose setting element rotatable relative to the housing during dose setting and dose dispensing, a drive member coupled to the dose setting member via a clutch, and a piston rod coupled to the housing and to the drive member. Further, the device further comprises a cartridge holder removably attached to the housing and a reset element, which is axially constrained to the dose setting element, and at least one spring acting on the reset element, such that, if the cartridge holder is detached from the housing, the reset element is axially moved relative to the housing onto a position in which the dose setting element is rotationally constrained to the housing and the drive member is allowed to rotate relative to the housing.
展开▼