Moller, Claus Schmidt,Klitmose, Lars Peter,Gjodesen, Claus Urup
申请号:
AU2008231897
公开号:
AU2008231897B2
申请日:
2008.03.14
申请国别(地区):
AU
年份:
2012
代理人:
摘要:
The invention relates to an injection device for injecting a dose of drug. Theinjectiondevice com prises a housing, a dose setting mechanism being operable to set a desireddose, an injection mechanism comprising a piston rod (7) adapted to cooperatewith a piston positioned in a cartridge containing a drug to be delivered in orderto cause a set dose to be delivered from the cartridge via the injection device,a dosage tube (6), and retaining means arranged to prevent axial movement of thedosage tube in a distal direction relatively to the housing during dose setting.The dose setting mechanism com prises a rotatable dose knob (24), operation ofthe dose setting mechanism causing energy to be stored in a spring member. Theinjection mechanism is driven by releasing energy previously stored in the springmember during dose setting.