Patent ID: 8251947
Filing Date: 2012-08-28
Classification: A61M

Abstract:
1. An injector for injecting a medicament into a patient, comprising: a transfer and firing device associable with a container that defines a first and second chambers, the transfer and firing device being operable to transfer a fluid from the first chamber to the second chamber in a first stage of operation and being operable for firing the fluid from the second chamber through an injection conduit, associated with the container, in a second stage of operation; a trigger device configured to block operation of the transfer and firing device to end the first stage of operation, the trigger device in blocking association with the transfer and firing device is operable manually in a second triggering stage which causes a firing mechanism to initiate the second stage of operation; and a transfer control that is manually operable to initiate operation of the transfer and firing device in the first stage of operation, wherein the injection conduit has a position that is fluidly incommunicated with the second chamber, the transfer and firing device configured to fluidly communicate the injection conduit with the second chamber in the first stage of operation, wherein the injection conduit comprises a communicating needle portion, the transfer control operable to relatively move the communicating needle portion with respect to the second chamber to pierce the container to fluidly communicate the second chamber with the communicating needle portion in the first stage of operation.