Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 21, 2017
Patent Application Number
15168571
Date Filed
May 31, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A drive mechanism for a drug delivery device having a rotationally fixed plunger rod driven by a lead screw. The lead screw engages a free lock which is coupled to a release knob. A dose setting dial cooperates with an inner cylinder using a clutch to establish the axial movement of the plunger rod during dose setting and dispensing.
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