Medicament delivery device

摘要

Provided is a medicament delivery device (100) comprising a tubular housing (110), having a proximal end (111) and an opposite distal end (112), an actuator means (119, 120), slidably and coaxially arranged inside the tubular housing (110) wherein is provided an inter-locking mechanism (119, 413) between the a cap (410) and the housing (110), enabling the cap (410) to freely spin, i.e. it is impossible to open the cap (410), until the medicament delivery device (100) has been properly activated by an activator means (160).

主权项

1. A medicament delivery device comprising:
a tubular housing having a proximal end and an opposite distal end; an actuator slidably and coaxially arranged inside the tubular housing and comprising a proximal annular contact member; a first resilient member arranged at a distal end of the actuator between an annular ledge of the tubular housing and an annular ledge of the actuator; a medicament container holder coaxially arranged within the actuator and fixedly attached to the tubular housing, wherein the medicament container holder further comprises a medicament container having a medicament therein, the medicament container further housing at least one slidable stopper and a membrane; an activating member interactively connected to the actuator and configured for holding the actuator and the first resilient member in a pre-tensioned state; a driver interactively connected either to the actuator or to the actuator and the activating member for driving the slidable stopper; a delivery member, comprising a retainer member fixedly connected to the container holder, a hub coaxially movable within the retainer member and having a needle having a proximal and an opposite distal end, an inner cap interactively connected to the hub and to the retainer member, and an outer cap coaxially arranged to the inner cap, wherein the outer cap is rotatably spinning in relation to the inner cap when the actuator and the first resilient member are in the pre-tensioned state; and a cap inter-locking member axially slidable and rotationally locked to the inner cap and abutting the proximal annular contact member, wherein the cap inter-locking member is configured for interacting with the outer cap when the actuator and the first resilient member are released from the pre-tensioned state; wherein the actuator comprises a tubular activation member and an intermediate longitudinal locking member; the proximal annular contact member is coaxially arranged within an inner surface proximal end of the tubular activation member; the intermediate longitudinal locking member further comprises a first co-acting device interactively connected to a corresponding first co-acting device of the activating member for holding the actuator and the first resilient member in the pre-tensioned state; the first co-acting device is a radial, outwardly extending protrusion; and the corresponding first co-acting device of the activating member is a radial inwardly extending protrusion.