INJECTION DEVICE AND METHOD OF ASSEMBLY AND ACTIVATION

摘要

An injector device for injecting or transferring a pharmaceutical product from a pharmaceutical cartridge. The injector device includes a body with one or more retention members disposed on the outer surface of the body. The injector device further includes a plunger rod having one or more receiving members formed about its length. The one or more retention members and the one or more receiving members are constructed to cooperatively retain the plunger rod on the body when the plunger rod is in a first position, and are constructed to cooperatively release the plunger rod from the body when the plunger rod is moved toward the distal end of the body to a second position. Movement of the plunger rod from the first position to the second position releases the plunger rod from the body of the injector and simultaneously activates a pharmaceutical cartridge disposed within the body of said injector.