Assembly of a drug delivery device

摘要

An assembly of a drug delivery device with a longitudinal axis (L) is given, comprising a body (1) with a proximal end (2) and a distal end (3). The drug delivery device further comprises a drive assembly and a first button member (4). The drive assembly is at least partially arranged within the body (1) and is adapted to facilitate dispense of a medicinal product. The first button member (4) acts on the drive assembly to prepare the drug delivery device for dispensing the medicinal product. The first button member (4) is adapted to be detachable from the body (1) after the preparation of the drug delivery device is completed.

主权项

1. An assembly of a drug delivery device with a longitudinal axis, comprising:
a body comprising a proximal end and a distal end, a drive assembly comprising a piston rod and a drive sleeve and being at least partially arranged within the body and being adapted to facilitate dispense of a medicinal product, a first button member acting on the drive assembly to prepare the drug delivery device in the form of priming and/or mixing powder with a fluid and/or expelling a priming portion of the medicinal product or air during a pre-ready state and a transient state of the assembly for dispensing the medicinal product during a ready state of the assembly, a second button member acting on the drive assembly to dispense the medicinal product in the ready state, wherein the second button member is inaccessible as long as the preparation of the drug delivery device is uncompleted, wherein first button member encases the second button member at least partially to render it inaccessible as long as the preparation of the drug delivery device is uncompleted, wherein the first button member acting on the drive assembly to prepare the drug delivery device results in movement of a piston rod and/or the drive sleeve to prepare the drug delivery device, wherein the ready state chronologically follows the preparation during the pre-ready state and the transient state of the assembly, and wherein the first button member is adapted to be detachable From the body (i) after the preparation of the drug delivery device is completed and (ii) before dispensing of the medicinal product.