Patent ID: 9186460
Filing Date: 2015-11-17
Classification: A61M

Abstract:
1. An assembly of a drug delivery device, comprising: a body having a distal end and a proximal end; a drive assembly arranged substantially within the body to facilitate dispense of a medicinal product, wherein facilitating dispense of the medicinal product comprises setting up a dose of the medicinal product and dispensing the dose; a button member arranged at the proximal end of the body and adapted to act upon the drive assembly; said drive assembly having an initial pre-ready state, a transient state and a ready state; wherein in the pre-ready and transient state the button member is twistable with respect to the body to act upon the drive assembly as to prepare the drive assembly for subsequent use in the ready state, wherein in the initial pre-ready state and the transient state the drug delivery device is unable to set up the dose and unable to dispense the dose, and wherein in the ready state the button member is axially moveable but not substantially twistable with respect to the body to act upon the drive assembly to set up and dispense the dose, wherein the drive assembly comprises a drive sleeve, operatively coupled to the button member, and a moving pivot, wherein the drive sleeve and the moving pivot each have a ramped interface that comprises a projection, a recess and a slanted surface, wherein (i) in the pre-ready state the drive sleeve is arranged disconnected from the moving pivot such that the projection of the drive sleeve is arranged opposite the slanted surface of the moving pivot and the projection of the moving pivot is arranged opposite the slanted surface of the drive sleeve, (ii) in the transient state the projection of the drive sleeve is guided along the slanted surface of the moving pivot and into the recess of the moving pivot and the projection of the moving pivot is guided along the slanted surface of the drive sleeve and into the recess of the drive sleeve and (iii) in the ready state the projection of the drive sleeve is disposed in the recess of the moving pivot and the projection of the moving pivot is disposed in the recess of the drive sleeve.