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DRUG DELIVERY DEVICE

  • US 20120325865A1
  • Filed: 10/14/2010
  • Published: 12/27/2012
  • Est. Priority Date: 10/16/2009
  • Status: Active Grant
First Claim
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1. A drive mechanism for a drug delivery device, comprising:

  • a housing,an axially displaceable piston rod to act on a piston of a cartridge containing a medicinal product to be dispensed,a drive member threadedly engaged with the piston rod and being slidably disposed relative to the housing between a distal stop position and a proximal stop position, and comprising at its proximal end section a radially extending receptacle adapted to receive a reduction gear,a dose dial member operably engaged with the drive member by means of the reduction gear, for transferring a dose setting rotative movement of the dose dial member at a lower rate of rotation to the drive member being rotatable with respect to the housing for setting of a dose.

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