Patent ID: 8585656
Filing Date: 2013-11-19
Classification: A61M

Abstract:
1. A dose setting mechanism for a drug delivery device comprising: a dial sleeve; and an internal housing portion having; an outer surface comprising; a helical path, wherein the dial sleeve surrounds and is coupled to the internal housing portion, wherein the internal housing; portion is configured to allow the dial sleeve to rotate rotates along a substantially rotational path during priming of the drug delivery device, and wherein the dial sleeve translates along the a helical path during dose setting of the drug delivery device; the outer surface of the internal housing comprises a threaded portion, and wherein the threaded portion comprises a rotational threaded portion and a helical threaded portion; and the dial sleeve rotates on the rotational threaded portion during priming of the drug delivery device, and wherein the dial sleeve translates along the helical threaded portion during dose setting of the drug delivery device.