Devices and methods for precision dose delivery

Abstract

Disclosed herein is a drug delivery device for loading, storing, transporting, and / or delivering precise doses of a drug product and other products including a fluid. The drug delivery device comprises a barrel, a plunger rod, a flange, and a channel. The drug delivery device is movable between a first configuration and a second configuration, wherein the channel is configured to engage and disengage from the plunger rod such that it prevents distal movement of the plunger rod after the plunger rod moves a priming distance while the drug delivery device is in the first configuration, and to allow the plunger rod to move further distally through the barrel after the drug delivery device is transitioned from the first configuration to the second configuration. The channel thus allows for priming and dispensing of a desired dose of a drug product from the drug delivery device.

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