Peter Nober;Benjamin Schaefer;Michael Helmer;Claudia Matthias;Reza Shahbazfar;Leo Zeimetz
发明人:
Michael Helmer,Claudia Matthias,Peter Nober,Reza Shahbazfar,Benjamin Schaefer,Leo Zeimetz
申请号：
US13500416
公开号：
US20130023831A1
申请日:
2010.10.08
申请国别(地区):
US
年份:
2013
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 for a product-containing cartridge, the cartridge having a piston slidably arranged therein in an axial direction, a piston rod to be operably engaged with the cartridge's piston for dispensing of a dose of the medicinal product, an adjusting assembly adapted to eliminate axial clearance between the piston and the piston rod, wherein the adjusting assembly comprises at least one radially extending spike element for mutually locking in position the piston and the piston rod irrespective of the relative distance between piston and piston rod.
