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Drive mechanism for drug delivery devices
专利权人:
Sanofi-Aventis Deutschland GmbH
发明人:
Helmer, Michael,Matthias, Claudia,Nober, Peter,Shahbazfar, Reza,Schafer, Benjamin,Zeimetz, Leo
申请号:
AU2010305365
公开号:
AU2010305365A1
申请日:
2010.10.08
申请国别(地区):
AU
年份:
2012
代理人:
摘要:
The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicinal product, comprising: a holder (14) for a product-containing cartridge (18), the cartridge (18) having a piston (20) slidably arranged therein in an axial direction, a piston rod (22 52) to be operably engaged with the cartridges piston (18) for dispensing of a dose of the medicinal product, an adjusting assembly (30 68) adapted to eliminate axial clearance between the piston (20) and the piston rod (22 52), wherein the adjusting assembly (30 68) comprises at least one radially extending spike element (34 56) for mutually locking in position the piston (20) and the piston rod (22 52) irrespective of the relative distance between piston (20) and piston rod (22 52).
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