AN INJECTOR

摘要

An injector having a two stage injection comprising: an outer housing having a first end and a second end; and a plunger assembly for being received within the outer housing and comprising a barrel having a needle disposed at an end thereof and a plunger for dispensing a fluid through the needle; in use the plunger assembly being moveable within the outer housing between a retracted position wherein the needle is at least partially housed within the outer housing and an engaged position wherein the needle projects outwardly of a needle opening located at the first end of the outer housing and whereby a rotary inhibiting mechanism interacts with the plunger assembly to inhibit movement of the plunger within the barrel until the plunger assembly has reached the engaged position.