×

Spindle for a drug delivery device

  • US 10,034,982 B2
  • Filed: 05/27/2010
  • Issued: 07/31/2018
  • Est. Priority Date: 06/01/2009
  • Status: Active Grant
First Claim
Patent Images

1. A dose setting mechanism for use with a drug delivery device, said dose setting mechanism comprising:

  • a housing insert comprising a helical groove form;

    a spindle for driving a bung of a cartridge, said spindle comprising;

    a generally circular shaft having an outer surface;

    a first helical groove provided along a first portion of said outer surface of said generally circular shaft, said first helical groove having a first pitch; and

    a second helical groove provided along a second portion of said outer surface of said generally circular shaft, said second helical groove overlapping said first helical groove, said second helical groove having a second pitch, and said second helical groove engaging the helical groove form of the housing insert; and

    a driver for driving said spindle, said driver comprising a helical groove form that engages said first helical groove provided along said first portion of said outer surface of said generally circular shaft of said spindle,wherein a longitudinal axial movement of the driver causes the spindle to rotate, andwherein the driver is prevented from rotating with respect to a drug delivery device housing during dispensing a dose.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×