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Spring arrangement in an injection device
专利权人:
Ursina Streit
发明人:
Ursina Streit,Markus Bollenbach,Patrick Hostettler,Daniel Kuenzli
申请号:
US12563805
公开号:
US08398594B2
申请日:
2009.09.21
申请国别(地区):
US
年份:
2013
代理人:
摘要:
An injection device, in some embodiments an autoinjector, which includes a thrust spring that advances an injection needle from an initial position to an insertion position from the distal end of the injection device and that causes a product to be emptied from the product reservoir by an emptying movement, and a return spring that retracts the injection needle from the insertion position into the distal end of the injection device counter to the force of the thrust spring, wherein the return spring is decoupled from the thrust spring during the emptying movement.
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