Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 13, 2023
0Patent Application Number
168522680
Date Filed
April 17, 2020
0Patent Citations
Patent Primary Examiner
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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