Claus Schmidt Moller;Lars Peter Klitmose;Claus Urup Gjoedesen
发明人:
Claus Schmidt Moller,Lars Peter Klitmose,Claus Urup Gjoedesen
申请号：
US12532337
公开号：
US08353878B2
申请日:
2008.03.14
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The invention relates to an injection device for injecting a dose of drug. The injection device comprises a housing, a dose setting mechanism being operable to set a desired dose, an injection mechanism comprising a piston rod (7) adapted to cooperate with a piston positioned in a cartridge containing a drug to be delivered in order to 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 the dosage tube in a distal direction relatively to the housing during dose setting. The dose setting mechanism comprises a rotatable dose knob (24), operation of the dose setting mechanism causing energy to be stored in a spring member. The injection mechanism is driven by releasing energy previously stored in the spring member during dose setting.
