Patent ID: 8235952

Claim:
A disposable injection device for delivering a dose of medicament, comprising: a generally elongated housing; a container for containing medicament to be injected through a needle; a force device arranged to act on the container; and an activating mechanism arranged to activate the force device, and comprising: a needle shield slidably arranged in relation to the housing; and a collapsible holding member connected to an inner end of the needle shield and arranged between a rearwardly directed ledge of the needle shield and a ledge on an inner surface of the housing; whereby upon movement of the needle shield when pressed against an injection site, the collapsible holding member collapses only after at least a certain force applied by the needle shield is reached; the needle penetrates and further movement of the needle shield activates the activating mechanism, which in turn releases the force device initiating an injection of medicament; the needle shield is pushed forward covering the needle by a return force of the collapsible holding member when the needle shield is removed from the injection site; and the needle shield is locked by a locking device arranged to prevent accidental needle sticks.